Home / 11,452.20-15,805.32-6,417.76

Finding the Fourth Proportional to 11,452.20, 15,805.32 and 6,417.76

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Solution

The fourth proportional to 11,452.20, 15,805.32 and 6,417.76 is: 8,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.20 : 15,805.32 = 6,417.76 : x
  2. Step 2: Convert to fraction form
    11,452.20/15,805.32 = 6,417.76/x
  3. Step 3: Cross multiply
    11,452.20x = 15,805.32 × 6,417.76
  4. Step 4: Simplify right side
    11,452.20x = 101,434,750.48
  5. Step 5: Solve for x
    x = 101,434,750.48/11,452.20
  6. Step 6: Final answer
    x = 8,857.23

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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.