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Finding the Fourth Proportional to 16,561.60, 24,861.60 and 8,766.40

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Solution

The fourth proportional to 16,561.60, 24,861.60 and 8,766.40 is: 13,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,561.60 : 24,861.60 = 8,766.40 : x
  2. Step 2: Convert to fraction form
    16,561.60/24,861.60 = 8,766.40/x
  3. Step 3: Cross multiply
    16,561.60x = 24,861.60 × 8,766.40
  4. Step 4: Simplify right side
    16,561.60x = 217,946,730.24
  5. Step 5: Solve for x
    x = 217,946,730.24/16,561.60
  6. Step 6: Final answer
    x = 13,159.76

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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.