Home / 10,881.39-15,024.79-8,359.53

Finding the Fourth Proportional to 10,881.39, 15,024.79 and 8,359.53

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Solution

The fourth proportional to 10,881.39, 15,024.79 and 8,359.53 is: 11,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.39 : 15,024.79 = 8,359.53 : x
  2. Step 2: Convert to fraction form
    10,881.39/15,024.79 = 8,359.53/x
  3. Step 3: Cross multiply
    10,881.39x = 15,024.79 × 8,359.53
  4. Step 4: Simplify right side
    10,881.39x = 125,600,182.75
  5. Step 5: Solve for x
    x = 125,600,182.75/10,881.39
  6. Step 6: Final answer
    x = 11,542.66

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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.