Home / 13,508.97-18,642.06-7,540.62

Finding the Fourth Proportional to 13,508.97, 18,642.06 and 7,540.62

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Solution

The fourth proportional to 13,508.97, 18,642.06 and 7,540.62 is: 10,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.97 : 18,642.06 = 7,540.62 : x
  2. Step 2: Convert to fraction form
    13,508.97/18,642.06 = 7,540.62/x
  3. Step 3: Cross multiply
    13,508.97x = 18,642.06 × 7,540.62
  4. Step 4: Simplify right side
    13,508.97x = 140,572,690.48
  5. Step 5: Solve for x
    x = 140,572,690.48/13,508.97
  6. Step 6: Final answer
    x = 10,405.88

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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.