Home / 14,886.12-20,542.44-8,171.70

Finding the Fourth Proportional to 14,886.12, 20,542.44 and 8,171.70

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Solution

The fourth proportional to 14,886.12, 20,542.44 and 8,171.70 is: 11,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.12 : 20,542.44 = 8,171.70 : x
  2. Step 2: Convert to fraction form
    14,886.12/20,542.44 = 8,171.70/x
  3. Step 3: Cross multiply
    14,886.12x = 20,542.44 × 8,171.70
  4. Step 4: Simplify right side
    14,886.12x = 167,866,656.95
  5. Step 5: Solve for x
    x = 167,866,656.95/14,886.12
  6. Step 6: Final answer
    x = 11,276.72

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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.