Home / 6,618.29-9,132.55-3,965.63

Finding the Fourth Proportional to 6,618.29, 9,132.55 and 3,965.63

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Solution

The fourth proportional to 6,618.29, 9,132.55 and 3,965.63 is: 5,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.29 : 9,132.55 = 3,965.63 : x
  2. Step 2: Convert to fraction form
    6,618.29/9,132.55 = 3,965.63/x
  3. Step 3: Cross multiply
    6,618.29x = 9,132.55 × 3,965.63
  4. Step 4: Simplify right side
    6,618.29x = 36,216,258.68
  5. Step 5: Solve for x
    x = 36,216,258.68/6,618.29
  6. Step 6: Final answer
    x = 5,472.15

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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.