Home / 8,928.26-12,320.88-4,949.36

Finding the Fourth Proportional to 8,928.26, 12,320.88 and 4,949.36

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Solution

The fourth proportional to 8,928.26, 12,320.88 and 4,949.36 is: 6,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.26 : 12,320.88 = 4,949.36 : x
  2. Step 2: Convert to fraction form
    8,928.26/12,320.88 = 4,949.36/x
  3. Step 3: Cross multiply
    8,928.26x = 12,320.88 × 4,949.36
  4. Step 4: Simplify right side
    8,928.26x = 60,980,470.64
  5. Step 5: Solve for x
    x = 60,980,470.64/8,928.26
  6. Step 6: Final answer
    x = 6,830.05

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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.