Home / 15,987.19-23,979.90-4,893.87

Finding the Fourth Proportional to 15,987.19, 23,979.90 and 4,893.87

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Solution

The fourth proportional to 15,987.19, 23,979.90 and 4,893.87 is: 7,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.19 : 23,979.90 = 4,893.87 : x
  2. Step 2: Convert to fraction form
    15,987.19/23,979.90 = 4,893.87/x
  3. Step 3: Cross multiply
    15,987.19x = 23,979.90 × 4,893.87
  4. Step 4: Simplify right side
    15,987.19x = 117,354,393.31
  5. Step 5: Solve for x
    x = 117,354,393.31/15,987.19
  6. Step 6: Final answer
    x = 7,340.53

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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.