Home / 12,279.46-18,416.58-3,512.02

Finding the Fourth Proportional to 12,279.46, 18,416.58 and 3,512.02

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Solution

The fourth proportional to 12,279.46, 18,416.58 and 3,512.02 is: 5,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.46 : 18,416.58 = 3,512.02 : x
  2. Step 2: Convert to fraction form
    12,279.46/18,416.58 = 3,512.02/x
  3. Step 3: Cross multiply
    12,279.46x = 18,416.58 × 3,512.02
  4. Step 4: Simplify right side
    12,279.46x = 64,679,397.29
  5. Step 5: Solve for x
    x = 64,679,397.29/12,279.46
  6. Step 6: Final answer
    x = 5,267.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.