Home / 12,731.36-17,571.52-8,017.12

Finding the Fourth Proportional to 12,731.36, 17,571.52 and 8,017.12

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Solution

The fourth proportional to 12,731.36, 17,571.52 and 8,017.12 is: 11,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.36 : 17,571.52 = 8,017.12 : x
  2. Step 2: Convert to fraction form
    12,731.36/17,571.52 = 8,017.12/x
  3. Step 3: Cross multiply
    12,731.36x = 17,571.52 × 8,017.12
  4. Step 4: Simplify right side
    12,731.36x = 140,872,984.42
  5. Step 5: Solve for x
    x = 140,872,984.42/12,731.36
  6. Step 6: Final answer
    x = 11,065.04

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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.