Home / 12,608.45-17,400.66-7,231.38

Finding the Fourth Proportional to 12,608.45, 17,400.66 and 7,231.38

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Solution

The fourth proportional to 12,608.45, 17,400.66 and 7,231.38 is: 9,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.45 : 17,400.66 = 7,231.38 : x
  2. Step 2: Convert to fraction form
    12,608.45/17,400.66 = 7,231.38/x
  3. Step 3: Cross multiply
    12,608.45x = 17,400.66 × 7,231.38
  4. Step 4: Simplify right side
    12,608.45x = 125,830,784.71
  5. Step 5: Solve for x
    x = 125,830,784.71/12,608.45
  6. Step 6: Final answer
    x = 9,979.88

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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.