Home / 8,979.08-13,469.56-3,135.74

Finding the Fourth Proportional to 8,979.08, 13,469.56 and 3,135.74

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Solution

The fourth proportional to 8,979.08, 13,469.56 and 3,135.74 is: 4,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.08 : 13,469.56 = 3,135.74 : x
  2. Step 2: Convert to fraction form
    8,979.08/13,469.56 = 3,135.74/x
  3. Step 3: Cross multiply
    8,979.08x = 13,469.56 × 3,135.74
  4. Step 4: Simplify right side
    8,979.08x = 42,236,962.89
  5. Step 5: Solve for x
    x = 42,236,962.89/8,979.08
  6. Step 6: Final answer
    x = 4,703.93

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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.