Home / 15,610.68-23,418.36-5,220

Finding the Fourth Proportional to 15,610.68, 23,418.36 and 5,220

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Solution

The fourth proportional to 15,610.68, 23,418.36 and 5,220 is: 7,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.68 : 23,418.36 = 5,220 : x
  2. Step 2: Convert to fraction form
    15,610.68/23,418.36 = 5,220/x
  3. Step 3: Cross multiply
    15,610.68x = 23,418.36 × 5,220
  4. Step 4: Simplify right side
    15,610.68x = 122,243,839.20
  5. Step 5: Solve for x
    x = 122,243,839.20/15,610.68
  6. Step 6: Final answer
    x = 7,830.78

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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.