Home / 15,987.25-23,979.16-4,893.92

Finding the Fourth Proportional to 15,987.25, 23,979.16 and 4,893.92

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Solution

The fourth proportional to 15,987.25, 23,979.16 and 4,893.92 is: 7,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.25 : 23,979.16 = 4,893.92 : x
  2. Step 2: Convert to fraction form
    15,987.25/23,979.16 = 4,893.92/x
  3. Step 3: Cross multiply
    15,987.25x = 23,979.16 × 4,893.92
  4. Step 4: Simplify right side
    15,987.25x = 117,352,080.61
  5. Step 5: Solve for x
    x = 117,352,080.61/15,987.25
  6. Step 6: Final answer
    x = 7,340.36

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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.