Home / 16,290.68-22,481.60-9,216.95

Finding the Fourth Proportional to 16,290.68, 22,481.60 and 9,216.95

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Solution

The fourth proportional to 16,290.68, 22,481.60 and 9,216.95 is: 12,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.68 : 22,481.60 = 9,216.95 : x
  2. Step 2: Convert to fraction form
    16,290.68/22,481.60 = 9,216.95/x
  3. Step 3: Cross multiply
    16,290.68x = 22,481.60 × 9,216.95
  4. Step 4: Simplify right side
    16,290.68x = 207,211,624.63
  5. Step 5: Solve for x
    x = 207,211,624.63/16,290.68
  6. Step 6: Final answer
    x = 12,719.65

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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.