Home / 15,401.20-23,107.20-5,540.80

Finding the Fourth Proportional to 15,401.20, 23,107.20 and 5,540.80

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Solution

The fourth proportional to 15,401.20, 23,107.20 and 5,540.80 is: 8,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.20 : 23,107.20 = 5,540.80 : x
  2. Step 2: Convert to fraction form
    15,401.20/23,107.20 = 5,540.80/x
  3. Step 3: Cross multiply
    15,401.20x = 23,107.20 × 5,540.80
  4. Step 4: Simplify right side
    15,401.20x = 128,032,373.76
  5. Step 5: Solve for x
    x = 128,032,373.76/15,401.20
  6. Step 6: Final answer
    x = 8,313.14

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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.