Home / 6,479.28-9,668.37-5,781.15

Finding the Fourth Proportional to 6,479.28, 9,668.37 and 5,781.15

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Solution

The fourth proportional to 6,479.28, 9,668.37 and 5,781.15 is: 8,626.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.28 : 9,668.37 = 5,781.15 : x
  2. Step 2: Convert to fraction form
    6,479.28/9,668.37 = 5,781.15/x
  3. Step 3: Cross multiply
    6,479.28x = 9,668.37 × 5,781.15
  4. Step 4: Simplify right side
    6,479.28x = 55,894,219.98
  5. Step 5: Solve for x
    x = 55,894,219.98/6,479.28
  6. Step 6: Final answer
    x = 8,626.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.