Home / 14,885.64-20,542.80-8,171.52

Finding the Fourth Proportional to 14,885.64, 20,542.80 and 8,171.52

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Solution

The fourth proportional to 14,885.64, 20,542.80 and 8,171.52 is: 11,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.64 : 20,542.80 = 8,171.52 : x
  2. Step 2: Convert to fraction form
    14,885.64/20,542.80 = 8,171.52/x
  3. Step 3: Cross multiply
    14,885.64x = 20,542.80 × 8,171.52
  4. Step 4: Simplify right side
    14,885.64x = 167,865,901.06
  5. Step 5: Solve for x
    x = 167,865,901.06/14,885.64
  6. Step 6: Final answer
    x = 11,277.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.