Home / 10,031.75-15,039.62-4,764.12

Finding the Fourth Proportional to 10,031.75, 15,039.62 and 4,764.12

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Solution

The fourth proportional to 10,031.75, 15,039.62 and 4,764.12 is: 7,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.75 : 15,039.62 = 4,764.12 : x
  2. Step 2: Convert to fraction form
    10,031.75/15,039.62 = 4,764.12/x
  3. Step 3: Cross multiply
    10,031.75x = 15,039.62 × 4,764.12
  4. Step 4: Simplify right side
    10,031.75x = 71,650,518.88
  5. Step 5: Solve for x
    x = 71,650,518.88/10,031.75
  6. Step 6: Final answer
    x = 7,142.38

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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.