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Finding the Fourth Proportional to 17,945.26, 24,763.95 and 9,987.32

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Solution

The fourth proportional to 17,945.26, 24,763.95 and 9,987.32 is: 13,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,945.26 : 24,763.95 = 9,987.32 : x
  2. Step 2: Convert to fraction form
    17,945.26/24,763.95 = 9,987.32/x
  3. Step 3: Cross multiply
    17,945.26x = 24,763.95 × 9,987.32
  4. Step 4: Simplify right side
    17,945.26x = 247,325,493.11
  5. Step 5: Solve for x
    x = 247,325,493.11/17,945.26
  6. Step 6: Final answer
    x = 13,782.22

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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.