Home / 8,323.08-12,480.88-3,125.28

Finding the Fourth Proportional to 8,323.08, 12,480.88 and 3,125.28

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Solution

The fourth proportional to 8,323.08, 12,480.88 and 3,125.28 is: 4,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.08 : 12,480.88 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    8,323.08/12,480.88 = 3,125.28/x
  3. Step 3: Cross multiply
    8,323.08x = 12,480.88 × 3,125.28
  4. Step 4: Simplify right side
    8,323.08x = 39,006,244.65
  5. Step 5: Solve for x
    x = 39,006,244.65/8,323.08
  6. Step 6: Final answer
    x = 4,686.52

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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.