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Finding the Fourth Proportional to 8,160.10, 12,244.20 and 4,652.80

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Solution

The fourth proportional to 8,160.10, 12,244.20 and 4,652.80 is: 6,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.10 : 12,244.20 = 4,652.80 : x
  2. Step 2: Convert to fraction form
    8,160.10/12,244.20 = 4,652.80/x
  3. Step 3: Cross multiply
    8,160.10x = 12,244.20 × 4,652.80
  4. Step 4: Simplify right side
    8,160.10x = 56,969,813.76
  5. Step 5: Solve for x
    x = 56,969,813.76/8,160.10
  6. Step 6: Final answer
    x = 6,981.51

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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.