Home / 13,671.52-20,485.71-9,956.66

Finding the Fourth Proportional to 13,671.52, 20,485.71 and 9,956.66

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Solution

The fourth proportional to 13,671.52, 20,485.71 and 9,956.66 is: 14,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.52 : 20,485.71 = 9,956.66 : x
  2. Step 2: Convert to fraction form
    13,671.52/20,485.71 = 9,956.66/x
  3. Step 3: Cross multiply
    13,671.52x = 20,485.71 × 9,956.66
  4. Step 4: Simplify right side
    13,671.52x = 203,969,146.90
  5. Step 5: Solve for x
    x = 203,969,146.90/13,671.52
  6. Step 6: Final answer
    x = 14,919.28

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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.