Home / 12,531.72-17,287.65-10,541.55

Finding the Fourth Proportional to 12,531.72, 17,287.65 and 10,541.55

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Solution

The fourth proportional to 12,531.72, 17,287.65 and 10,541.55 is: 14,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.72 : 17,287.65 = 10,541.55 : x
  2. Step 2: Convert to fraction form
    12,531.72/17,287.65 = 10,541.55/x
  3. Step 3: Cross multiply
    12,531.72x = 17,287.65 × 10,541.55
  4. Step 4: Simplify right side
    12,531.72x = 182,238,626.86
  5. Step 5: Solve for x
    x = 182,238,626.86/12,531.72
  6. Step 6: Final answer
    x = 14,542.19

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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.