Home / 15,711.56-21,695.88-10,694.48

Finding the Fourth Proportional to 15,711.56, 21,695.88 and 10,694.48

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Solution

The fourth proportional to 15,711.56, 21,695.88 and 10,694.48 is: 14,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711.56 : 21,695.88 = 10,694.48 : x
  2. Step 2: Convert to fraction form
    15,711.56/21,695.88 = 10,694.48/x
  3. Step 3: Cross multiply
    15,711.56x = 21,695.88 × 10,694.48
  4. Step 4: Simplify right side
    15,711.56x = 232,026,154.74
  5. Step 5: Solve for x
    x = 232,026,154.74/15,711.56
  6. Step 6: Final answer
    x = 14,767.86

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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.