Home / 12,348,043.70-18,522,065.55-11,655,202.10

Finding the Fourth Proportional to 12,348,043.70, 18,522,065.55 and 11,655,202.10

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Solution

The fourth proportional to 12,348,043.70, 18,522,065.55 and 11,655,202.10 is: 17,482,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348,043.70 : 18,522,065.55 = 11,655,202.10 : x
  2. Step 2: Convert to fraction form
    12,348,043.70/18,522,065.55 = 11,655,202.10/x
  3. Step 3: Cross multiply
    12,348,043.70x = 18,522,065.55 × 11,655,202.10
  4. Step 4: Simplify right side
    12,348,043.70x = 215,878,417,294,697.66
  5. Step 5: Solve for x
    x = 215,878,417,294,697.66/12,348,043.70
  6. Step 6: Final answer
    x = 17,482,803.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.