Home / 15,337.49-21,165.19-8,531.48

Finding the Fourth Proportional to 15,337.49, 21,165.19 and 8,531.48

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Solution

The fourth proportional to 15,337.49, 21,165.19 and 8,531.48 is: 11,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.49 : 21,165.19 = 8,531.48 : x
  2. Step 2: Convert to fraction form
    15,337.49/21,165.19 = 8,531.48/x
  3. Step 3: Cross multiply
    15,337.49x = 21,165.19 × 8,531.48
  4. Step 4: Simplify right side
    15,337.49x = 180,570,395.18
  5. Step 5: Solve for x
    x = 180,570,395.18/15,337.49
  6. Step 6: Final answer
    x = 11,773.14

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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.