Home / 8,577.36-12,868.80-4,195.20

Finding the Fourth Proportional to 8,577.36, 12,868.80 and 4,195.20

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Solution

The fourth proportional to 8,577.36, 12,868.80 and 4,195.20 is: 6,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.36 : 12,868.80 = 4,195.20 : x
  2. Step 2: Convert to fraction form
    8,577.36/12,868.80 = 4,195.20/x
  3. Step 3: Cross multiply
    8,577.36x = 12,868.80 × 4,195.20
  4. Step 4: Simplify right side
    8,577.36x = 53,987,189.76
  5. Step 5: Solve for x
    x = 53,987,189.76/8,577.36
  6. Step 6: Final answer
    x = 6,294.15

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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.