Home / 8,678.08-13,013.80-3,747.32

Finding the Fourth Proportional to 8,678.08, 13,013.80 and 3,747.32

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Solution

The fourth proportional to 8,678.08, 13,013.80 and 3,747.32 is: 5,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.08 : 13,013.80 = 3,747.32 : x
  2. Step 2: Convert to fraction form
    8,678.08/13,013.80 = 3,747.32/x
  3. Step 3: Cross multiply
    8,678.08x = 13,013.80 × 3,747.32
  4. Step 4: Simplify right side
    8,678.08x = 48,766,873.02
  5. Step 5: Solve for x
    x = 48,766,873.02/8,678.08
  6. Step 6: Final answer
    x = 5,619.55

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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.