Home / 12,459.06-18,685.38-3,691.92

Finding the Fourth Proportional to 12,459.06, 18,685.38 and 3,691.92

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Solution

The fourth proportional to 12,459.06, 18,685.38 and 3,691.92 is: 5,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.06 : 18,685.38 = 3,691.92 : x
  2. Step 2: Convert to fraction form
    12,459.06/18,685.38 = 3,691.92/x
  3. Step 3: Cross multiply
    12,459.06x = 18,685.38 × 3,691.92
  4. Step 4: Simplify right side
    12,459.06x = 68,984,928.13
  5. Step 5: Solve for x
    x = 68,984,928.13/12,459.06
  6. Step 6: Final answer
    x = 5,536.93

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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.