Home / 16,747.12-25,120.68-7,988.16

Finding the Fourth Proportional to 16,747.12, 25,120.68 and 7,988.16

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Solution

The fourth proportional to 16,747.12, 25,120.68 and 7,988.16 is: 11,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,747.12 : 25,120.68 = 7,988.16 : x
  2. Step 2: Convert to fraction form
    16,747.12/25,120.68 = 7,988.16/x
  3. Step 3: Cross multiply
    16,747.12x = 25,120.68 × 7,988.16
  4. Step 4: Simplify right side
    16,747.12x = 200,668,011.15
  5. Step 5: Solve for x
    x = 200,668,011.15/16,747.12
  6. Step 6: Final answer
    x = 11,982.24

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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.