Home / 10,240.12-15,351.22-8,499.60

Finding the Fourth Proportional to 10,240.12, 15,351.22 and 8,499.60

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Solution

The fourth proportional to 10,240.12, 15,351.22 and 8,499.60 is: 12,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.12 : 15,351.22 = 8,499.60 : x
  2. Step 2: Convert to fraction form
    10,240.12/15,351.22 = 8,499.60/x
  3. Step 3: Cross multiply
    10,240.12x = 15,351.22 × 8,499.60
  4. Step 4: Simplify right side
    10,240.12x = 130,479,229.51
  5. Step 5: Solve for x
    x = 130,479,229.51/10,240.12
  6. Step 6: Final answer
    x = 12,741.96

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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.