Home / 10,161.09-15,242.13-3,145.95

Finding the Fourth Proportional to 10,161.09, 15,242.13 and 3,145.95

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Solution

The fourth proportional to 10,161.09, 15,242.13 and 3,145.95 is: 4,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.09 : 15,242.13 = 3,145.95 : x
  2. Step 2: Convert to fraction form
    10,161.09/15,242.13 = 3,145.95/x
  3. Step 3: Cross multiply
    10,161.09x = 15,242.13 × 3,145.95
  4. Step 4: Simplify right side
    10,161.09x = 47,950,978.87
  5. Step 5: Solve for x
    x = 47,950,978.87/10,161.09
  6. Step 6: Final answer
    x = 4,719.08

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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.