Home / 14,934.60-20,610.69-8,221.71

Finding the Fourth Proportional to 14,934.60, 20,610.69 and 8,221.71

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Solution

The fourth proportional to 14,934.60, 20,610.69 and 8,221.71 is: 11,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,934.60 : 20,610.69 = 8,221.71 : x
  2. Step 2: Convert to fraction form
    14,934.60/20,610.69 = 8,221.71/x
  3. Step 3: Cross multiply
    14,934.60x = 20,610.69 × 8,221.71
  4. Step 4: Simplify right side
    14,934.60x = 169,455,116.08
  5. Step 5: Solve for x
    x = 169,455,116.08/14,934.60
  6. Step 6: Final answer
    x = 11,346.48

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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.