Home / 13,217.95-18,236.04-7,548.61

Finding the Fourth Proportional to 13,217.95, 18,236.04 and 7,548.61

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Solution

The fourth proportional to 13,217.95, 18,236.04 and 7,548.61 is: 10,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.95 : 18,236.04 = 7,548.61 : x
  2. Step 2: Convert to fraction form
    13,217.95/18,236.04 = 7,548.61/x
  3. Step 3: Cross multiply
    13,217.95x = 18,236.04 × 7,548.61
  4. Step 4: Simplify right side
    13,217.95x = 137,656,753.90
  5. Step 5: Solve for x
    x = 137,656,753.90/13,217.95
  6. Step 6: Final answer
    x = 10,414.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.