Home / 15,418.11-21,276.98-8,344.53

Finding the Fourth Proportional to 15,418.11, 21,276.98 and 8,344.53

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Solution

The fourth proportional to 15,418.11, 21,276.98 and 8,344.53 is: 11,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.11 : 21,276.98 = 8,344.53 : x
  2. Step 2: Convert to fraction form
    15,418.11/21,276.98 = 8,344.53/x
  3. Step 3: Cross multiply
    15,418.11x = 21,276.98 × 8,344.53
  4. Step 4: Simplify right side
    15,418.11x = 177,546,397.92
  5. Step 5: Solve for x
    x = 177,546,397.92/15,418.11
  6. Step 6: Final answer
    x = 11,515.45

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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.