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Finding the Fourth Proportional to 17,679.90, 24,399.05 and 9,722.42

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Solution

The fourth proportional to 17,679.90, 24,399.05 and 9,722.42 is: 13,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.90 : 24,399.05 = 9,722.42 : x
  2. Step 2: Convert to fraction form
    17,679.90/24,399.05 = 9,722.42/x
  3. Step 3: Cross multiply
    17,679.90x = 24,399.05 × 9,722.42
  4. Step 4: Simplify right side
    17,679.90x = 237,217,641.09
  5. Step 5: Solve for x
    x = 237,217,641.09/17,679.90
  6. Step 6: Final answer
    x = 13,417.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.