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Finding the Fourth Proportional to 8,977.53, 12,396.49 and 6,600.79

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Solution

The fourth proportional to 8,977.53, 12,396.49 and 6,600.79 is: 9,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.53 : 12,396.49 = 6,600.79 : x
  2. Step 2: Convert to fraction form
    8,977.53/12,396.49 = 6,600.79/x
  3. Step 3: Cross multiply
    8,977.53x = 12,396.49 × 6,600.79
  4. Step 4: Simplify right side
    8,977.53x = 81,826,663.35
  5. Step 5: Solve for x
    x = 81,826,663.35/8,977.53
  6. Step 6: Final answer
    x = 9,114.60

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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.