Home / 17,945.20-24,764.13-9,987.42

Finding the Fourth Proportional to 17,945.20, 24,764.13 and 9,987.42

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Solution

The fourth proportional to 17,945.20, 24,764.13 and 9,987.42 is: 13,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,945.20 : 24,764.13 = 9,987.42 : x
  2. Step 2: Convert to fraction form
    17,945.20/24,764.13 = 9,987.42/x
  3. Step 3: Cross multiply
    17,945.20x = 24,764.13 × 9,987.42
  4. Step 4: Simplify right side
    17,945.20x = 247,329,767.24
  5. Step 5: Solve for x
    x = 247,329,767.24/17,945.20
  6. Step 6: Final answer
    x = 13,782.50

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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.