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Finding the Fourth Proportional to 8,560.61, 12,847.61 and 4,400.45

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Solution

The fourth proportional to 8,560.61, 12,847.61 and 4,400.45 is: 6,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.61 : 12,847.61 = 4,400.45 : x
  2. Step 2: Convert to fraction form
    8,560.61/12,847.61 = 4,400.45/x
  3. Step 3: Cross multiply
    8,560.61x = 12,847.61 × 4,400.45
  4. Step 4: Simplify right side
    8,560.61x = 56,535,265.42
  5. Step 5: Solve for x
    x = 56,535,265.42/8,560.61
  6. Step 6: Final answer
    x = 6,604.12

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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.