Home / 10,161.48-15,243.66-3,142.09

Finding the Fourth Proportional to 10,161.48, 15,243.66 and 3,142.09

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Solution

The fourth proportional to 10,161.48, 15,243.66 and 3,142.09 is: 4,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.48 : 15,243.66 = 3,142.09 : x
  2. Step 2: Convert to fraction form
    10,161.48/15,243.66 = 3,142.09/x
  3. Step 3: Cross multiply
    10,161.48x = 15,243.66 × 3,142.09
  4. Step 4: Simplify right side
    10,161.48x = 47,896,970.70
  5. Step 5: Solve for x
    x = 47,896,970.70/10,161.48
  6. Step 6: Final answer
    x = 4,713.58

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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.