Home / 12,395.70-18,593.58-5,278.10

Finding the Fourth Proportional to 12,395.70, 18,593.58 and 5,278.10

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Solution

The fourth proportional to 12,395.70, 18,593.58 and 5,278.10 is: 7,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.70 : 18,593.58 = 5,278.10 : x
  2. Step 2: Convert to fraction form
    12,395.70/18,593.58 = 5,278.10/x
  3. Step 3: Cross multiply
    12,395.70x = 18,593.58 × 5,278.10
  4. Step 4: Simplify right side
    12,395.70x = 98,138,774.60
  5. Step 5: Solve for x
    x = 98,138,774.60/12,395.70
  6. Step 6: Final answer
    x = 7,917.16

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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.