Home / 10,129.52-15,201.06-3,555.72

Finding the Fourth Proportional to 10,129.52, 15,201.06 and 3,555.72

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Solution

The fourth proportional to 10,129.52, 15,201.06 and 3,555.72 is: 5,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.52 : 15,201.06 = 3,555.72 : x
  2. Step 2: Convert to fraction form
    10,129.52/15,201.06 = 3,555.72/x
  3. Step 3: Cross multiply
    10,129.52x = 15,201.06 × 3,555.72
  4. Step 4: Simplify right side
    10,129.52x = 54,050,713.06
  5. Step 5: Solve for x
    x = 54,050,713.06/10,129.52
  6. Step 6: Final answer
    x = 5,335.96

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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.