Home / 15,551.80-23,321.22-5,161.48

Finding the Fourth Proportional to 15,551.80, 23,321.22 and 5,161.48

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Solution

The fourth proportional to 15,551.80, 23,321.22 and 5,161.48 is: 7,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.80 : 23,321.22 = 5,161.48 : x
  2. Step 2: Convert to fraction form
    15,551.80/23,321.22 = 5,161.48/x
  3. Step 3: Cross multiply
    15,551.80x = 23,321.22 × 5,161.48
  4. Step 4: Simplify right side
    15,551.80x = 120,372,010.61
  5. Step 5: Solve for x
    x = 120,372,010.61/15,551.80
  6. Step 6: Final answer
    x = 7,740.07

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1.5x scale

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.