Home / 12,329.73-17,029.17-8,987.49

Finding the Fourth Proportional to 12,329.73, 17,029.17 and 8,987.49

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Solution

The fourth proportional to 12,329.73, 17,029.17 and 8,987.49 is: 12,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.73 : 17,029.17 = 8,987.49 : x
  2. Step 2: Convert to fraction form
    12,329.73/17,029.17 = 8,987.49/x
  3. Step 3: Cross multiply
    12,329.73x = 17,029.17 × 8,987.49
  4. Step 4: Simplify right side
    12,329.73x = 153,049,495.08
  5. Step 5: Solve for x
    x = 153,049,495.08/12,329.73
  6. Step 6: Final answer
    x = 12,413.05

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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.