Home / 15,923.91-21,975.28-8,754.13

Finding the Fourth Proportional to 15,923.91, 21,975.28 and 8,754.13

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Solution

The fourth proportional to 15,923.91, 21,975.28 and 8,754.13 is: 12,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.91 : 21,975.28 = 8,754.13 : x
  2. Step 2: Convert to fraction form
    15,923.91/21,975.28 = 8,754.13/x
  3. Step 3: Cross multiply
    15,923.91x = 21,975.28 × 8,754.13
  4. Step 4: Simplify right side
    15,923.91x = 192,374,454.13
  5. Step 5: Solve for x
    x = 192,374,454.13/15,923.91
  6. Step 6: Final answer
    x = 12,080.85

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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.