Home / 13,447.15-20,152.29-6,859.52

Finding the Fourth Proportional to 13,447.15, 20,152.29 and 6,859.52

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Solution

The fourth proportional to 13,447.15, 20,152.29 and 6,859.52 is: 10,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.15 : 20,152.29 = 6,859.52 : x
  2. Step 2: Convert to fraction form
    13,447.15/20,152.29 = 6,859.52/x
  3. Step 3: Cross multiply
    13,447.15x = 20,152.29 × 6,859.52
  4. Step 4: Simplify right side
    13,447.15x = 138,235,036.83
  5. Step 5: Solve for x
    x = 138,235,036.83/13,447.15
  6. Step 6: Final answer
    x = 10,279.88

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