Home / 13,446.56-18,557.15-7,479.29

Finding the Fourth Proportional to 13,446.56, 18,557.15 and 7,479.29

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Solution

The fourth proportional to 13,446.56, 18,557.15 and 7,479.29 is: 10,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.56 : 18,557.15 = 7,479.29 : x
  2. Step 2: Convert to fraction form
    13,446.56/18,557.15 = 7,479.29/x
  3. Step 3: Cross multiply
    13,446.56x = 18,557.15 × 7,479.29
  4. Step 4: Simplify right side
    13,446.56x = 138,794,176.24
  5. Step 5: Solve for x
    x = 138,794,176.24/13,446.56
  6. Step 6: Final answer
    x = 10,321.91

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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.