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Finding the Fourth Proportional to 18,437.67, 25,443.96 and 10,479.90

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Solution

The fourth proportional to 18,437.67, 25,443.96 and 10,479.90 is: 14,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.67 : 25,443.96 = 10,479.90 : x
  2. Step 2: Convert to fraction form
    18,437.67/25,443.96 = 10,479.90/x
  3. Step 3: Cross multiply
    18,437.67x = 25,443.96 × 10,479.90
  4. Step 4: Simplify right side
    18,437.67x = 266,650,156.40
  5. Step 5: Solve for x
    x = 266,650,156.40/18,437.67
  6. Step 6: Final answer
    x = 14,462.25

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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.