Home / 18,715.32-25,827.06-10,331.76

Finding the Fourth Proportional to 18,715.32, 25,827.06 and 10,331.76

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Solution

The fourth proportional to 18,715.32, 25,827.06 and 10,331.76 is: 14,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.32 : 25,827.06 = 10,331.76 : x
  2. Step 2: Convert to fraction form
    18,715.32/25,827.06 = 10,331.76/x
  3. Step 3: Cross multiply
    18,715.32x = 25,827.06 × 10,331.76
  4. Step 4: Simplify right side
    18,715.32x = 266,838,985.43
  5. Step 5: Solve for x
    x = 266,838,985.43/18,715.32
  6. Step 6: Final answer
    x = 14,257.78

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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.