Home / 13,445.38-18,553.62-7,476.58

Finding the Fourth Proportional to 13,445.38, 18,553.62 and 7,476.58

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Solution

The fourth proportional to 13,445.38, 18,553.62 and 7,476.58 is: 10,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.38 : 18,553.62 = 7,476.58 : x
  2. Step 2: Convert to fraction form
    13,445.38/18,553.62 = 7,476.58/x
  3. Step 3: Cross multiply
    13,445.38x = 18,553.62 × 7,476.58
  4. Step 4: Simplify right side
    13,445.38x = 138,717,591.72
  5. Step 5: Solve for x
    x = 138,717,591.72/13,445.38
  6. Step 6: Final answer
    x = 10,317.12

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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.