Home / 8,717.28-13,074.56-3,785.60

Finding the Fourth Proportional to 8,717.28, 13,074.56 and 3,785.60

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Solution

The fourth proportional to 8,717.28, 13,074.56 and 3,785.60 is: 5,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.28 : 13,074.56 = 3,785.60 : x
  2. Step 2: Convert to fraction form
    8,717.28/13,074.56 = 3,785.60/x
  3. Step 3: Cross multiply
    8,717.28x = 13,074.56 × 3,785.60
  4. Step 4: Simplify right side
    8,717.28x = 49,494,970.04
  5. Step 5: Solve for x
    x = 49,494,970.04/8,717.28
  6. Step 6: Final answer
    x = 5,677.80

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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.