Home / 8,219.71-11,343.38-4,635.80

Finding the Fourth Proportional to 8,219.71, 11,343.38 and 4,635.80

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Solution

The fourth proportional to 8,219.71, 11,343.38 and 4,635.80 is: 6,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.71 : 11,343.38 = 4,635.80 : x
  2. Step 2: Convert to fraction form
    8,219.71/11,343.38 = 4,635.80/x
  3. Step 3: Cross multiply
    8,219.71x = 11,343.38 × 4,635.80
  4. Step 4: Simplify right side
    8,219.71x = 52,585,641.00
  5. Step 5: Solve for x
    x = 52,585,641.00/8,219.71
  6. Step 6: Final answer
    x = 6,397.51

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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.