Home / 10,976.38-15,147.12-6,260.56

Finding the Fourth Proportional to 10,976.38, 15,147.12 and 6,260.56

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Solution

The fourth proportional to 10,976.38, 15,147.12 and 6,260.56 is: 8,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.38 : 15,147.12 = 6,260.56 : x
  2. Step 2: Convert to fraction form
    10,976.38/15,147.12 = 6,260.56/x
  3. Step 3: Cross multiply
    10,976.38x = 15,147.12 × 6,260.56
  4. Step 4: Simplify right side
    10,976.38x = 94,829,453.59
  5. Step 5: Solve for x
    x = 94,829,453.59/10,976.38
  6. Step 6: Final answer
    x = 8,639.41

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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.