Home / 15,976.65-22,047.86-9,170.12

Finding the Fourth Proportional to 15,976.65, 22,047.86 and 9,170.12

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Solution

The fourth proportional to 15,976.65, 22,047.86 and 9,170.12 is: 12,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,976.65 : 22,047.86 = 9,170.12 : x
  2. Step 2: Convert to fraction form
    15,976.65/22,047.86 = 9,170.12/x
  3. Step 3: Cross multiply
    15,976.65x = 22,047.86 × 9,170.12
  4. Step 4: Simplify right side
    15,976.65x = 202,181,531.21
  5. Step 5: Solve for x
    x = 202,181,531.21/15,976.65
  6. Step 6: Final answer
    x = 12,654.81

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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.