Home / 18,663.28-25,754.16-10,279.76

Finding the Fourth Proportional to 18,663.28, 25,754.16 and 10,279.76

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Solution

The fourth proportional to 18,663.28, 25,754.16 and 10,279.76 is: 14,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.28 : 25,754.16 = 10,279.76 : x
  2. Step 2: Convert to fraction form
    18,663.28/25,754.16 = 10,279.76/x
  3. Step 3: Cross multiply
    18,663.28x = 25,754.16 × 10,279.76
  4. Step 4: Simplify right side
    18,663.28x = 264,746,583.80
  5. Step 5: Solve for x
    x = 264,746,583.80/18,663.28
  6. Step 6: Final answer
    x = 14,185.43

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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.