Home / 10,743.18-16,115.21-5,117.96

Finding the Fourth Proportional to 10,743.18, 16,115.21 and 5,117.96

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Solution

The fourth proportional to 10,743.18, 16,115.21 and 5,117.96 is: 7,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,743.18 : 16,115.21 = 5,117.96 : x
  2. Step 2: Convert to fraction form
    10,743.18/16,115.21 = 5,117.96/x
  3. Step 3: Cross multiply
    10,743.18x = 16,115.21 × 5,117.96
  4. Step 4: Simplify right side
    10,743.18x = 82,477,000.17
  5. Step 5: Solve for x
    x = 82,477,000.17/10,743.18
  6. Step 6: Final answer
    x = 7,677.15

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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.