Home / 12,983.28-17,919.92-7,608.24

Finding the Fourth Proportional to 12,983.28, 17,919.92 and 7,608.24

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Solution

The fourth proportional to 12,983.28, 17,919.92 and 7,608.24 is: 10,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.28 : 17,919.92 = 7,608.24 : x
  2. Step 2: Convert to fraction form
    12,983.28/17,919.92 = 7,608.24/x
  3. Step 3: Cross multiply
    12,983.28x = 17,919.92 × 7,608.24
  4. Step 4: Simplify right side
    12,983.28x = 136,339,052.14
  5. Step 5: Solve for x
    x = 136,339,052.14/12,983.28
  6. Step 6: Final answer
    x = 10,501.13

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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.