Home / 8,650.13-12,965.96-3,720.15

Finding the Fourth Proportional to 8,650.13, 12,965.96 and 3,720.15

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Solution

The fourth proportional to 8,650.13, 12,965.96 and 3,720.15 is: 5,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.13 : 12,965.96 = 3,720.15 : x
  2. Step 2: Convert to fraction form
    8,650.13/12,965.96 = 3,720.15/x
  3. Step 3: Cross multiply
    8,650.13x = 12,965.96 × 3,720.15
  4. Step 4: Simplify right side
    8,650.13x = 48,235,325.39
  5. Step 5: Solve for x
    x = 48,235,325.39/8,650.13
  6. Step 6: Final answer
    x = 5,576.26

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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.