Home / 13,932.41-20,862.92-7,685.47

Finding the Fourth Proportional to 13,932.41, 20,862.92 and 7,685.47

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Solution

The fourth proportional to 13,932.41, 20,862.92 and 7,685.47 is: 11,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.41 : 20,862.92 = 7,685.47 : x
  2. Step 2: Convert to fraction form
    13,932.41/20,862.92 = 7,685.47/x
  3. Step 3: Cross multiply
    13,932.41x = 20,862.92 × 7,685.47
  4. Step 4: Simplify right side
    13,932.41x = 160,341,364.99
  5. Step 5: Solve for x
    x = 160,341,364.99/13,932.41
  6. Step 6: Final answer
    x = 11,508.52

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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.