Home / 15,540.28-23,313.85-5,679.54

Finding the Fourth Proportional to 15,540.28, 23,313.85 and 5,679.54

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Solution

The fourth proportional to 15,540.28, 23,313.85 and 5,679.54 is: 8,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.28 : 23,313.85 = 5,679.54 : x
  2. Step 2: Convert to fraction form
    15,540.28/23,313.85 = 5,679.54/x
  3. Step 3: Cross multiply
    15,540.28x = 23,313.85 × 5,679.54
  4. Step 4: Simplify right side
    15,540.28x = 132,411,943.63
  5. Step 5: Solve for x
    x = 132,411,943.63/15,540.28
  6. Step 6: Final answer
    x = 8,520.56

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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.