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Finding the Fourth Proportional to 17,873.75, 24,668.72 and 9,918.54

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Solution

The fourth proportional to 17,873.75, 24,668.72 and 9,918.54 is: 13,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,873.75 : 24,668.72 = 9,918.54 : x
  2. Step 2: Convert to fraction form
    17,873.75/24,668.72 = 9,918.54/x
  3. Step 3: Cross multiply
    17,873.75x = 24,668.72 × 9,918.54
  4. Step 4: Simplify right side
    17,873.75x = 244,677,636.48
  5. Step 5: Solve for x
    x = 244,677,636.48/17,873.75
  6. Step 6: Final answer
    x = 13,689.22

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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.