Home / 8,766.78-12,098.91-4,989.14

Finding the Fourth Proportional to 8,766.78, 12,098.91 and 4,989.14

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Solution

The fourth proportional to 8,766.78, 12,098.91 and 4,989.14 is: 6,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.78 : 12,098.91 = 4,989.14 : x
  2. Step 2: Convert to fraction form
    8,766.78/12,098.91 = 4,989.14/x
  3. Step 3: Cross multiply
    8,766.78x = 12,098.91 × 4,989.14
  4. Step 4: Simplify right side
    8,766.78x = 60,363,095.34
  5. Step 5: Solve for x
    x = 60,363,095.34/8,766.78
  6. Step 6: Final answer
    x = 6,885.44

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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.