Home / 8,971.44-13,457.16-3,127.90

Finding the Fourth Proportional to 8,971.44, 13,457.16 and 3,127.90

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Solution

The fourth proportional to 8,971.44, 13,457.16 and 3,127.90 is: 4,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.44 : 13,457.16 = 3,127.90 : x
  2. Step 2: Convert to fraction form
    8,971.44/13,457.16 = 3,127.90/x
  3. Step 3: Cross multiply
    8,971.44x = 13,457.16 × 3,127.90
  4. Step 4: Simplify right side
    8,971.44x = 42,092,650.76
  5. Step 5: Solve for x
    x = 42,092,650.76/8,971.44
  6. Step 6: Final answer
    x = 4,691.85

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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.