Home / 10,502.52-15,750.12-3,105

Finding the Fourth Proportional to 10,502.52, 15,750.12 and 3,105

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Solution

The fourth proportional to 10,502.52, 15,750.12 and 3,105 is: 4,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502.52 : 15,750.12 = 3,105 : x
  2. Step 2: Convert to fraction form
    10,502.52/15,750.12 = 3,105/x
  3. Step 3: Cross multiply
    10,502.52x = 15,750.12 × 3,105
  4. Step 4: Simplify right side
    10,502.52x = 48,904,122.60
  5. Step 5: Solve for x
    x = 48,904,122.60/10,502.52
  6. Step 6: Final answer
    x = 4,656.42

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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.