Home / 15,422.97-21,279.87-9,050.16

Finding the Fourth Proportional to 15,422.97, 21,279.87 and 9,050.16

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Solution

The fourth proportional to 15,422.97, 21,279.87 and 9,050.16 is: 12,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.97 : 21,279.87 = 9,050.16 : x
  2. Step 2: Convert to fraction form
    15,422.97/21,279.87 = 9,050.16/x
  3. Step 3: Cross multiply
    15,422.97x = 21,279.87 × 9,050.16
  4. Step 4: Simplify right side
    15,422.97x = 192,586,228.28
  5. Step 5: Solve for x
    x = 192,586,228.28/15,422.97
  6. Step 6: Final answer
    x = 12,486.97

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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.