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Finding the Fourth Proportional to 8,617.04, 11,895.45 and 6,626.90

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Solution

The fourth proportional to 8,617.04, 11,895.45 and 6,626.90 is: 9,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.04 : 11,895.45 = 6,626.90 : x
  2. Step 2: Convert to fraction form
    8,617.04/11,895.45 = 6,626.90/x
  3. Step 3: Cross multiply
    8,617.04x = 11,895.45 × 6,626.90
  4. Step 4: Simplify right side
    8,617.04x = 78,829,957.61
  5. Step 5: Solve for x
    x = 78,829,957.61/8,617.04
  6. Step 6: Final answer
    x = 9,148.15

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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.