Home / 10,129.28-15,193.38-3,203.24

Finding the Fourth Proportional to 10,129.28, 15,193.38 and 3,203.24

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Solution

The fourth proportional to 10,129.28, 15,193.38 and 3,203.24 is: 4,804.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.28 : 15,193.38 = 3,203.24 : x
  2. Step 2: Convert to fraction form
    10,129.28/15,193.38 = 3,203.24/x
  3. Step 3: Cross multiply
    10,129.28x = 15,193.38 × 3,203.24
  4. Step 4: Simplify right side
    10,129.28x = 48,668,042.55
  5. Step 5: Solve for x
    x = 48,668,042.55/10,129.28
  6. Step 6: Final answer
    x = 4,804.69

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Double scale
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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.