Home / 15,422.46-21,282.96-8,348.86

Finding the Fourth Proportional to 15,422.46, 21,282.96 and 8,348.86

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Solution

The fourth proportional to 15,422.46, 21,282.96 and 8,348.86 is: 11,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.46 : 21,282.96 = 8,348.86 : x
  2. Step 2: Convert to fraction form
    15,422.46/21,282.96 = 8,348.86/x
  3. Step 3: Cross multiply
    15,422.46x = 21,282.96 × 8,348.86
  4. Step 4: Simplify right side
    15,422.46x = 177,688,453.43
  5. Step 5: Solve for x
    x = 177,688,453.43/15,422.46
  6. Step 6: Final answer
    x = 11,521.41

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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.