Home / 12,487.13-18,732.51-4,697.76

Finding the Fourth Proportional to 12,487.13, 18,732.51 and 4,697.76

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Solution

The fourth proportional to 12,487.13, 18,732.51 and 4,697.76 is: 7,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.13 : 18,732.51 = 4,697.76 : x
  2. Step 2: Convert to fraction form
    12,487.13/18,732.51 = 4,697.76/x
  3. Step 3: Cross multiply
    12,487.13x = 18,732.51 × 4,697.76
  4. Step 4: Simplify right side
    12,487.13x = 88,000,836.18
  5. Step 5: Solve for x
    x = 88,000,836.18/12,487.13
  6. Step 6: Final answer
    x = 7,047.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.