Home / 10,108.87-15,161.28-3,535.72

Finding the Fourth Proportional to 10,108.87, 15,161.28 and 3,535.72

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Solution

The fourth proportional to 10,108.87, 15,161.28 and 3,535.72 is: 5,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.87 : 15,161.28 = 3,535.72 : x
  2. Step 2: Convert to fraction form
    10,108.87/15,161.28 = 3,535.72/x
  3. Step 3: Cross multiply
    10,108.87x = 15,161.28 × 3,535.72
  4. Step 4: Simplify right side
    10,108.87x = 53,606,040.92
  5. Step 5: Solve for x
    x = 53,606,040.92/10,108.87
  6. Step 6: Final answer
    x = 5,302.87

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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.