Home / 8,114.80-12,145.20-5,887.30

Finding the Fourth Proportional to 8,114.80, 12,145.20 and 5,887.30

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Solution

The fourth proportional to 8,114.80, 12,145.20 and 5,887.30 is: 8,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.80 : 12,145.20 = 5,887.30 : x
  2. Step 2: Convert to fraction form
    8,114.80/12,145.20 = 5,887.30/x
  3. Step 3: Cross multiply
    8,114.80x = 12,145.20 × 5,887.30
  4. Step 4: Simplify right side
    8,114.80x = 71,502,435.96
  5. Step 5: Solve for x
    x = 71,502,435.96/8,114.80
  6. Step 6: Final answer
    x = 8,811.36

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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.