Home / 13,649.73-20,471.14-9,689.37

Finding the Fourth Proportional to 13,649.73, 20,471.14 and 9,689.37

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Solution

The fourth proportional to 13,649.73, 20,471.14 and 9,689.37 is: 14,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.73 : 20,471.14 = 9,689.37 : x
  2. Step 2: Convert to fraction form
    13,649.73/20,471.14 = 9,689.37/x
  3. Step 3: Cross multiply
    13,649.73x = 20,471.14 × 9,689.37
  4. Step 4: Simplify right side
    13,649.73x = 198,352,449.78
  5. Step 5: Solve for x
    x = 198,352,449.78/13,649.73
  6. Step 6: Final answer
    x = 14,531.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.