Home / 8,066.36-12,104.40-3,139.40

Finding the Fourth Proportional to 8,066.36, 12,104.40 and 3,139.40

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Solution

The fourth proportional to 8,066.36, 12,104.40 and 3,139.40 is: 4,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.36 : 12,104.40 = 3,139.40 : x
  2. Step 2: Convert to fraction form
    8,066.36/12,104.40 = 3,139.40/x
  3. Step 3: Cross multiply
    8,066.36x = 12,104.40 × 3,139.40
  4. Step 4: Simplify right side
    8,066.36x = 38,000,553.36
  5. Step 5: Solve for x
    x = 38,000,553.36/8,066.36
  6. Step 6: Final answer
    x = 4,710.99

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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.