Home / 15,908.28-21,949.83-9,937.77

Finding the Fourth Proportional to 15,908.28, 21,949.83 and 9,937.77

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Solution

The fourth proportional to 15,908.28, 21,949.83 and 9,937.77 is: 13,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.28 : 21,949.83 = 9,937.77 : x
  2. Step 2: Convert to fraction form
    15,908.28/21,949.83 = 9,937.77/x
  3. Step 3: Cross multiply
    15,908.28x = 21,949.83 × 9,937.77
  4. Step 4: Simplify right side
    15,908.28x = 218,132,362.08
  5. Step 5: Solve for x
    x = 218,132,362.08/15,908.28
  6. Step 6: Final answer
    x = 13,711.88

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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.