Home / 10,310.60-15,449.91-7,154.21

Finding the Fourth Proportional to 10,310.60, 15,449.91 and 7,154.21

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Solution

The fourth proportional to 10,310.60, 15,449.91 and 7,154.21 is: 10,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.60 : 15,449.91 = 7,154.21 : x
  2. Step 2: Convert to fraction form
    10,310.60/15,449.91 = 7,154.21/x
  3. Step 3: Cross multiply
    10,310.60x = 15,449.91 × 7,154.21
  4. Step 4: Simplify right side
    10,310.60x = 110,531,900.62
  5. Step 5: Solve for x
    x = 110,531,900.62/10,310.60
  6. Step 6: Final answer
    x = 10,720.22

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1.5x scale

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.