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Finding the Fourth Proportional to 8,766.30, 13,149.45 and 7,454.10

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Solution

The fourth proportional to 8,766.30, 13,149.45 and 7,454.10 is: 11,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.30 : 13,149.45 = 7,454.10 : x
  2. Step 2: Convert to fraction form
    8,766.30/13,149.45 = 7,454.10/x
  3. Step 3: Cross multiply
    8,766.30x = 13,149.45 × 7,454.10
  4. Step 4: Simplify right side
    8,766.30x = 98,017,315.25
  5. Step 5: Solve for x
    x = 98,017,315.25/8,766.30
  6. Step 6: Final answer
    x = 11,181.15

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1.5x scale

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.