Home / 10,129.33-15,200.79-3,555.53

Finding the Fourth Proportional to 10,129.33, 15,200.79 and 3,555.53

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Solution

The fourth proportional to 10,129.33, 15,200.79 and 3,555.53 is: 5,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.33 : 15,200.79 = 3,555.53 : x
  2. Step 2: Convert to fraction form
    10,129.33/15,200.79 = 3,555.53/x
  3. Step 3: Cross multiply
    10,129.33x = 15,200.79 × 3,555.53
  4. Step 4: Simplify right side
    10,129.33x = 54,046,889.54
  5. Step 5: Solve for x
    x = 54,046,889.54/10,129.33
  6. Step 6: Final answer
    x = 5,335.68

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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.