Home / 10,351.53-15,531.86-8,031.69

Finding the Fourth Proportional to 10,351.53, 15,531.86 and 8,031.69

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Solution

The fourth proportional to 10,351.53, 15,531.86 and 8,031.69 is: 12,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.53 : 15,531.86 = 8,031.69 : x
  2. Step 2: Convert to fraction form
    10,351.53/15,531.86 = 8,031.69/x
  3. Step 3: Cross multiply
    10,351.53x = 15,531.86 × 8,031.69
  4. Step 4: Simplify right side
    10,351.53x = 124,747,104.72
  5. Step 5: Solve for x
    x = 124,747,104.72/10,351.53
  6. Step 6: Final answer
    x = 12,051.08

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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.