Home / 12,531.38-17,293.87-7,155.27

Finding the Fourth Proportional to 12,531.38, 17,293.87 and 7,155.27

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Solution

The fourth proportional to 12,531.38, 17,293.87 and 7,155.27 is: 9,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.38 : 17,293.87 = 7,155.27 : x
  2. Step 2: Convert to fraction form
    12,531.38/17,293.87 = 7,155.27/x
  3. Step 3: Cross multiply
    12,531.38x = 17,293.87 × 7,155.27
  4. Step 4: Simplify right side
    12,531.38x = 123,742,309.19
  5. Step 5: Solve for x
    x = 123,742,309.19/12,531.38
  6. Step 6: Final answer
    x = 9,874.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.