Home / 10,073.28-15,109.92-4,879.92

Finding the Fourth Proportional to 10,073.28, 15,109.92 and 4,879.92

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Solution

The fourth proportional to 10,073.28, 15,109.92 and 4,879.92 is: 7,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,073.28 : 15,109.92 = 4,879.92 : x
  2. Step 2: Convert to fraction form
    10,073.28/15,109.92 = 4,879.92/x
  3. Step 3: Cross multiply
    10,073.28x = 15,109.92 × 4,879.92
  4. Step 4: Simplify right side
    10,073.28x = 73,735,200.81
  5. Step 5: Solve for x
    x = 73,735,200.81/10,073.28
  6. Step 6: Final answer
    x = 7,319.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.