Home / 7,227.60-9,935.40-6,514.80

Finding the Fourth Proportional to 7,227.60, 9,935.40 and 6,514.80

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Solution

The fourth proportional to 7,227.60, 9,935.40 and 6,514.80 is: 8,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.60 : 9,935.40 = 6,514.80 : x
  2. Step 2: Convert to fraction form
    7,227.60/9,935.40 = 6,514.80/x
  3. Step 3: Cross multiply
    7,227.60x = 9,935.40 × 6,514.80
  4. Step 4: Simplify right side
    7,227.60x = 64,727,143.92
  5. Step 5: Solve for x
    x = 64,727,143.92/7,227.60
  6. Step 6: Final answer
    x = 8,955.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.