Home / 18,715.22-25,827.02-10,331.72

Finding the Fourth Proportional to 18,715.22, 25,827.02 and 10,331.72

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Solution

The fourth proportional to 18,715.22, 25,827.02 and 10,331.72 is: 14,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.22 : 25,827.02 = 10,331.72 : x
  2. Step 2: Convert to fraction form
    18,715.22/25,827.02 = 10,331.72/x
  3. Step 3: Cross multiply
    18,715.22x = 25,827.02 × 10,331.72
  4. Step 4: Simplify right side
    18,715.22x = 266,837,493.88
  5. Step 5: Solve for x
    x = 266,837,493.88/18,715.22
  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.