Home / 12,325.43-17,021.52-7,851.19

Finding the Fourth Proportional to 12,325.43, 17,021.52 and 7,851.19

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Solution

The fourth proportional to 12,325.43, 17,021.52 and 7,851.19 is: 10,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.43 : 17,021.52 = 7,851.19 : x
  2. Step 2: Convert to fraction form
    12,325.43/17,021.52 = 7,851.19/x
  3. Step 3: Cross multiply
    12,325.43x = 17,021.52 × 7,851.19
  4. Step 4: Simplify right side
    12,325.43x = 133,639,187.61
  5. Step 5: Solve for x
    x = 133,639,187.61/12,325.43
  6. Step 6: Final answer
    x = 10,842.56

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Half scale
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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.