Home / 8,648.28-12,982.14-5,145.84

Finding the Fourth Proportional to 8,648.28, 12,982.14 and 5,145.84

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Solution

The fourth proportional to 8,648.28, 12,982.14 and 5,145.84 is: 7,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.28 : 12,982.14 = 5,145.84 : x
  2. Step 2: Convert to fraction form
    8,648.28/12,982.14 = 5,145.84/x
  3. Step 3: Cross multiply
    8,648.28x = 12,982.14 × 5,145.84
  4. Step 4: Simplify right side
    8,648.28x = 66,804,015.30
  5. Step 5: Solve for x
    x = 66,804,015.30/8,648.28
  6. Step 6: Final answer
    x = 7,724.54

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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.