Home / 12,213.61-18,306.25-5,625.95

Finding the Fourth Proportional to 12,213.61, 18,306.25 and 5,625.95

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Solution

The fourth proportional to 12,213.61, 18,306.25 and 5,625.95 is: 8,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.61 : 18,306.25 = 5,625.95 : x
  2. Step 2: Convert to fraction form
    12,213.61/18,306.25 = 5,625.95/x
  3. Step 3: Cross multiply
    12,213.61x = 18,306.25 × 5,625.95
  4. Step 4: Simplify right side
    12,213.61x = 102,989,941.59
  5. Step 5: Solve for x
    x = 102,989,941.59/12,213.61
  6. Step 6: Final answer
    x = 8,432.39

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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.