Home / 17,109.90-25,686.45-9,218.70

Finding the Fourth Proportional to 17,109.90, 25,686.45 and 9,218.70

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Solution

The fourth proportional to 17,109.90, 25,686.45 and 9,218.70 is: 13,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,109.90 : 25,686.45 = 9,218.70 : x
  2. Step 2: Convert to fraction form
    17,109.90/25,686.45 = 9,218.70/x
  3. Step 3: Cross multiply
    17,109.90x = 25,686.45 × 9,218.70
  4. Step 4: Simplify right side
    17,109.90x = 236,795,676.62
  5. Step 5: Solve for x
    x = 236,795,676.62/17,109.90
  6. Step 6: Final answer
    x = 13,839.69

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1.5x scale

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.