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Finding the Fourth Proportional to 8,280.50, 12,421.11 and 2,437.61

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Solution

The fourth proportional to 8,280.50, 12,421.11 and 2,437.61 is: 3,656.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.50 : 12,421.11 = 2,437.61 : x
  2. Step 2: Convert to fraction form
    8,280.50/12,421.11 = 2,437.61/x
  3. Step 3: Cross multiply
    8,280.50x = 12,421.11 × 2,437.61
  4. Step 4: Simplify right side
    8,280.50x = 30,277,821.95
  5. Step 5: Solve for x
    x = 30,277,821.95/8,280.50
  6. Step 6: Final answer
    x = 3,656.52

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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.