Home / 10,391.25-15,596.60-5,132.20

Finding the Fourth Proportional to 10,391.25, 15,596.60 and 5,132.20

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Solution

The fourth proportional to 10,391.25, 15,596.60 and 5,132.20 is: 7,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.25 : 15,596.60 = 5,132.20 : x
  2. Step 2: Convert to fraction form
    10,391.25/15,596.60 = 5,132.20/x
  3. Step 3: Cross multiply
    10,391.25x = 15,596.60 × 5,132.20
  4. Step 4: Simplify right side
    10,391.25x = 80,044,907.85
  5. Step 5: Solve for x
    x = 80,044,907.85/10,391.25
  6. Step 6: Final answer
    x = 7,703.10

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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.