Home / 13,551.13-18,699.24-8,446.15

Finding the Fourth Proportional to 13,551.13, 18,699.24 and 8,446.15

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Solution

The fourth proportional to 13,551.13, 18,699.24 and 8,446.15 is: 11,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.13 : 18,699.24 = 8,446.15 : x
  2. Step 2: Convert to fraction form
    13,551.13/18,699.24 = 8,446.15/x
  3. Step 3: Cross multiply
    13,551.13x = 18,699.24 × 8,446.15
  4. Step 4: Simplify right side
    13,551.13x = 157,936,585.93
  5. Step 5: Solve for x
    x = 157,936,585.93/13,551.13
  6. Step 6: Final answer
    x = 11,654.86

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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.