Home / 15,855.45-23,784.17-5,324.64

Finding the Fourth Proportional to 15,855.45, 23,784.17 and 5,324.64

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Solution

The fourth proportional to 15,855.45, 23,784.17 and 5,324.64 is: 7,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.45 : 23,784.17 = 5,324.64 : x
  2. Step 2: Convert to fraction form
    15,855.45/23,784.17 = 5,324.64/x
  3. Step 3: Cross multiply
    15,855.45x = 23,784.17 × 5,324.64
  4. Step 4: Simplify right side
    15,855.45x = 126,642,027.13
  5. Step 5: Solve for x
    x = 126,642,027.13/15,855.45
  6. Step 6: Final answer
    x = 7,987.29

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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.