Home / 8,447.90-12,669.11-4,937.76

Finding the Fourth Proportional to 8,447.90, 12,669.11 and 4,937.76

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Solution

The fourth proportional to 8,447.90, 12,669.11 and 4,937.76 is: 7,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.90 : 12,669.11 = 4,937.76 : x
  2. Step 2: Convert to fraction form
    8,447.90/12,669.11 = 4,937.76/x
  3. Step 3: Cross multiply
    8,447.90x = 12,669.11 × 4,937.76
  4. Step 4: Simplify right side
    8,447.90x = 62,557,018.42
  5. Step 5: Solve for x
    x = 62,557,018.42/8,447.90
  6. Step 6: Final answer
    x = 7,405.04

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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.