Home / 7,766.40-11,642.56-3,146.24

Finding the Fourth Proportional to 7,766.40, 11,642.56 and 3,146.24

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Solution

The fourth proportional to 7,766.40, 11,642.56 and 3,146.24 is: 4,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.40 : 11,642.56 = 3,146.24 : x
  2. Step 2: Convert to fraction form
    7,766.40/11,642.56 = 3,146.24/x
  3. Step 3: Cross multiply
    7,766.40x = 11,642.56 × 3,146.24
  4. Step 4: Simplify right side
    7,766.40x = 36,630,287.97
  5. Step 5: Solve for x
    x = 36,630,287.97/7,766.40
  6. Step 6: Final answer
    x = 4,716.51

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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.