Home / 15,989.20-22,065.11-9,276.12

Finding the Fourth Proportional to 15,989.20, 22,065.11 and 9,276.12

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Solution

The fourth proportional to 15,989.20, 22,065.11 and 9,276.12 is: 12,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.20 : 22,065.11 = 9,276.12 : x
  2. Step 2: Convert to fraction form
    15,989.20/22,065.11 = 9,276.12/x
  3. Step 3: Cross multiply
    15,989.20x = 22,065.11 × 9,276.12
  4. Step 4: Simplify right side
    15,989.20x = 204,678,596.58
  5. Step 5: Solve for x
    x = 204,678,596.58/15,989.20
  6. Step 6: Final answer
    x = 12,801.05

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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.