Home / 8,271.96-12,409.20-5,749.80

Finding the Fourth Proportional to 8,271.96, 12,409.20 and 5,749.80

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Solution

The fourth proportional to 8,271.96, 12,409.20 and 5,749.80 is: 8,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.96 : 12,409.20 = 5,749.80 : x
  2. Step 2: Convert to fraction form
    8,271.96/12,409.20 = 5,749.80/x
  3. Step 3: Cross multiply
    8,271.96x = 12,409.20 × 5,749.80
  4. Step 4: Simplify right side
    8,271.96x = 71,350,418.16
  5. Step 5: Solve for x
    x = 71,350,418.16/8,271.96
  6. Step 6: Final answer
    x = 8,625.58

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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.