Home / 10,161.24-15,228.86-5,229.96

Finding the Fourth Proportional to 10,161.24, 15,228.86 and 5,229.96

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Solution

The fourth proportional to 10,161.24, 15,228.86 and 5,229.96 is: 7,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.24 : 15,228.86 = 5,229.96 : x
  2. Step 2: Convert to fraction form
    10,161.24/15,228.86 = 5,229.96/x
  3. Step 3: Cross multiply
    10,161.24x = 15,228.86 × 5,229.96
  4. Step 4: Simplify right side
    10,161.24x = 79,646,328.65
  5. Step 5: Solve for x
    x = 79,646,328.65/10,161.24
  6. Step 6: Final answer
    x = 7,838.25

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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.