Home / 13,508.28-18,641.10-7,539.60

Finding the Fourth Proportional to 13,508.28, 18,641.10 and 7,539.60

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Solution

The fourth proportional to 13,508.28, 18,641.10 and 7,539.60 is: 10,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.28 : 18,641.10 = 7,539.60 : x
  2. Step 2: Convert to fraction form
    13,508.28/18,641.10 = 7,539.60/x
  3. Step 3: Cross multiply
    13,508.28x = 18,641.10 × 7,539.60
  4. Step 4: Simplify right side
    13,508.28x = 140,546,437.56
  5. Step 5: Solve for x
    x = 140,546,437.56/13,508.28
  6. Step 6: Final answer
    x = 10,404.47

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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.