Home / 7,344.96-10,136.06-3,987.78

Finding the Fourth Proportional to 7,344.96, 10,136.06 and 3,987.78

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Solution

The fourth proportional to 7,344.96, 10,136.06 and 3,987.78 is: 5,503.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.96 : 10,136.06 = 3,987.78 : x
  2. Step 2: Convert to fraction form
    7,344.96/10,136.06 = 3,987.78/x
  3. Step 3: Cross multiply
    7,344.96x = 10,136.06 × 3,987.78
  4. Step 4: Simplify right side
    7,344.96x = 40,420,377.35
  5. Step 5: Solve for x
    x = 40,420,377.35/7,344.96
  6. Step 6: Final answer
    x = 5,503.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.