Home / 12,402.12-18,601.56-5,475

Finding the Fourth Proportional to 12,402.12, 18,601.56 and 5,475

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Solution

The fourth proportional to 12,402.12, 18,601.56 and 5,475 is: 8,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.12 : 18,601.56 = 5,475 : x
  2. Step 2: Convert to fraction form
    12,402.12/18,601.56 = 5,475/x
  3. Step 3: Cross multiply
    12,402.12x = 18,601.56 × 5,475
  4. Step 4: Simplify right side
    12,402.12x = 101,843,541
  5. Step 5: Solve for x
    x = 101,843,541/12,402.12
  6. Step 6: Final answer
    x = 8,211.78

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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.