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Finding the Fourth Proportional to 8,423.73, 12,633.17 and 2,580.80

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Solution

The fourth proportional to 8,423.73, 12,633.17 and 2,580.80 is: 3,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.73 : 12,633.17 = 2,580.80 : x
  2. Step 2: Convert to fraction form
    8,423.73/12,633.17 = 2,580.80/x
  3. Step 3: Cross multiply
    8,423.73x = 12,633.17 × 2,580.80
  4. Step 4: Simplify right side
    8,423.73x = 32,603,609.07
  5. Step 5: Solve for x
    x = 32,603,609.07/8,423.73
  6. Step 6: Final answer
    x = 3,870.45

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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.