Home / 15,422.27-21,282.65-8,348.70

Finding the Fourth Proportional to 15,422.27, 21,282.65 and 8,348.70

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Solution

The fourth proportional to 15,422.27, 21,282.65 and 8,348.70 is: 11,521.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.27 : 21,282.65 = 8,348.70 : x
  2. Step 2: Convert to fraction form
    15,422.27/21,282.65 = 8,348.70/x
  3. Step 3: Cross multiply
    15,422.27x = 21,282.65 × 8,348.70
  4. Step 4: Simplify right side
    15,422.27x = 177,682,529.43
  5. Step 5: Solve for x
    x = 177,682,529.43/15,422.27
  6. Step 6: Final answer
    x = 11,521.17

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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.