Home / 7,659.28-11,483.56-3,912.20

Finding the Fourth Proportional to 7,659.28, 11,483.56 and 3,912.20

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Solution

The fourth proportional to 7,659.28, 11,483.56 and 3,912.20 is: 5,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.28 : 11,483.56 = 3,912.20 : x
  2. Step 2: Convert to fraction form
    7,659.28/11,483.56 = 3,912.20/x
  3. Step 3: Cross multiply
    7,659.28x = 11,483.56 × 3,912.20
  4. Step 4: Simplify right side
    7,659.28x = 44,925,963.87
  5. Step 5: Solve for x
    x = 44,925,963.87/7,659.28
  6. Step 6: Final answer
    x = 5,865.56

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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.