Home / 12,182.40-18,273.60-6,998.40

Finding the Fourth Proportional to 12,182.40, 18,273.60 and 6,998.40

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Solution

The fourth proportional to 12,182.40, 18,273.60 and 6,998.40 is: 10,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.40 : 18,273.60 = 6,998.40 : x
  2. Step 2: Convert to fraction form
    12,182.40/18,273.60 = 6,998.40/x
  3. Step 3: Cross multiply
    12,182.40x = 18,273.60 × 6,998.40
  4. Step 4: Simplify right side
    12,182.40x = 127,885,962.24
  5. Step 5: Solve for x
    x = 127,885,962.24/12,182.40
  6. Step 6: Final answer
    x = 10,497.60

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Half scale
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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.