Home / 15,672.89-23,509.49-3,986.11

Finding the Fourth Proportional to 15,672.89, 23,509.49 and 3,986.11

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Solution

The fourth proportional to 15,672.89, 23,509.49 and 3,986.11 is: 5,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.89 : 23,509.49 = 3,986.11 : x
  2. Step 2: Convert to fraction form
    15,672.89/23,509.49 = 3,986.11/x
  3. Step 3: Cross multiply
    15,672.89x = 23,509.49 × 3,986.11
  4. Step 4: Simplify right side
    15,672.89x = 93,711,413.18
  5. Step 5: Solve for x
    x = 93,711,413.18/15,672.89
  6. Step 6: Final answer
    x = 5,979.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.