Home / 15,057.06-20,780.19-8,344.14

Finding the Fourth Proportional to 15,057.06, 20,780.19 and 8,344.14

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Solution

The fourth proportional to 15,057.06, 20,780.19 and 8,344.14 is: 11,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.06 : 20,780.19 = 8,344.14 : x
  2. Step 2: Convert to fraction form
    15,057.06/20,780.19 = 8,344.14/x
  3. Step 3: Cross multiply
    15,057.06x = 20,780.19 × 8,344.14
  4. Step 4: Simplify right side
    15,057.06x = 173,392,814.59
  5. Step 5: Solve for x
    x = 173,392,814.59/15,057.06
  6. Step 6: Final answer
    x = 11,515.72

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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.