Home / 15,392.43-21,241.56-8,318.85

Finding the Fourth Proportional to 15,392.43, 21,241.56 and 8,318.85

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Solution

The fourth proportional to 15,392.43, 21,241.56 and 8,318.85 is: 11,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.43 : 21,241.56 = 8,318.85 : x
  2. Step 2: Convert to fraction form
    15,392.43/21,241.56 = 8,318.85/x
  3. Step 3: Cross multiply
    15,392.43x = 21,241.56 × 8,318.85
  4. Step 4: Simplify right side
    15,392.43x = 176,705,351.41
  5. Step 5: Solve for x
    x = 176,705,351.41/15,392.43
  6. Step 6: Final answer
    x = 11,480.02

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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.