Home / 13,932.38-20,905.74-9,255.61

Finding the Fourth Proportional to 13,932.38, 20,905.74 and 9,255.61

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Solution

The fourth proportional to 13,932.38, 20,905.74 and 9,255.61 is: 13,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.38 : 20,905.74 = 9,255.61 : x
  2. Step 2: Convert to fraction form
    13,932.38/20,905.74 = 9,255.61/x
  3. Step 3: Cross multiply
    13,932.38x = 20,905.74 × 9,255.61
  4. Step 4: Simplify right side
    13,932.38x = 193,495,323.94
  5. Step 5: Solve for x
    x = 193,495,323.94/13,932.38
  6. Step 6: Final answer
    x = 13,888.17

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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.