Home / 12,647.20-17,452.86-7,269.64

Finding the Fourth Proportional to 12,647.20, 17,452.86 and 7,269.64

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Solution

The fourth proportional to 12,647.20, 17,452.86 and 7,269.64 is: 10,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.20 : 17,452.86 = 7,269.64 : x
  2. Step 2: Convert to fraction form
    12,647.20/17,452.86 = 7,269.64/x
  3. Step 3: Cross multiply
    12,647.20x = 17,452.86 × 7,269.64
  4. Step 4: Simplify right side
    12,647.20x = 126,876,009.17
  5. Step 5: Solve for x
    x = 126,876,009.17/12,647.20
  6. Step 6: Final answer
    x = 10,031.94

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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.