Home / 8,772.20-13,158.44-2,928.84

Finding the Fourth Proportional to 8,772.20, 13,158.44 and 2,928.84

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Solution

The fourth proportional to 8,772.20, 13,158.44 and 2,928.84 is: 4,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.20 : 13,158.44 = 2,928.84 : x
  2. Step 2: Convert to fraction form
    8,772.20/13,158.44 = 2,928.84/x
  3. Step 3: Cross multiply
    8,772.20x = 13,158.44 × 2,928.84
  4. Step 4: Simplify right side
    8,772.20x = 38,538,965.41
  5. Step 5: Solve for x
    x = 38,538,965.41/8,772.20
  6. Step 6: Final answer
    x = 4,393.31

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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.