Home / 10,648.20-15,975.38-4,407.06

Finding the Fourth Proportional to 10,648.20, 15,975.38 and 4,407.06

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Solution

The fourth proportional to 10,648.20, 15,975.38 and 4,407.06 is: 6,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.20 : 15,975.38 = 4,407.06 : x
  2. Step 2: Convert to fraction form
    10,648.20/15,975.38 = 4,407.06/x
  3. Step 3: Cross multiply
    10,648.20x = 15,975.38 × 4,407.06
  4. Step 4: Simplify right side
    10,648.20x = 70,404,469.20
  5. Step 5: Solve for x
    x = 70,404,469.20/10,648.20
  6. Step 6: Final answer
    x = 6,611.87

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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.