Home / 12,459.66-18,686.94-3,572.61

Finding the Fourth Proportional to 12,459.66, 18,686.94 and 3,572.61

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Solution

The fourth proportional to 12,459.66, 18,686.94 and 3,572.61 is: 5,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.66 : 18,686.94 = 3,572.61 : x
  2. Step 2: Convert to fraction form
    12,459.66/18,686.94 = 3,572.61/x
  3. Step 3: Cross multiply
    12,459.66x = 18,686.94 × 3,572.61
  4. Step 4: Simplify right side
    12,459.66x = 66,761,148.71
  5. Step 5: Solve for x
    x = 66,761,148.71/12,459.66
  6. Step 6: Final answer
    x = 5,358.18

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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.