Home / 8,939.90-13,404.65-2,698.04

Finding the Fourth Proportional to 8,939.90, 13,404.65 and 2,698.04

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Solution

The fourth proportional to 8,939.90, 13,404.65 and 2,698.04 is: 4,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.90 : 13,404.65 = 2,698.04 : x
  2. Step 2: Convert to fraction form
    8,939.90/13,404.65 = 2,698.04/x
  3. Step 3: Cross multiply
    8,939.90x = 13,404.65 × 2,698.04
  4. Step 4: Simplify right side
    8,939.90x = 36,166,301.91
  5. Step 5: Solve for x
    x = 36,166,301.91/8,939.90
  6. Step 6: Final answer
    x = 4,045.49

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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.