Home / 8,208.11-12,312.41-3,210.28

Finding the Fourth Proportional to 8,208.11, 12,312.41 and 3,210.28

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Solution

The fourth proportional to 8,208.11, 12,312.41 and 3,210.28 is: 4,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.11 : 12,312.41 = 3,210.28 : x
  2. Step 2: Convert to fraction form
    8,208.11/12,312.41 = 3,210.28/x
  3. Step 3: Cross multiply
    8,208.11x = 12,312.41 × 3,210.28
  4. Step 4: Simplify right side
    8,208.11x = 39,526,306.00
  5. Step 5: Solve for x
    x = 39,526,306.00/8,208.11
  6. Step 6: Final answer
    x = 4,815.52

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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.