Home / 12,641.90-18,965.30-4,850.11

Finding the Fourth Proportional to 12,641.90, 18,965.30 and 4,850.11

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Solution

The fourth proportional to 12,641.90, 18,965.30 and 4,850.11 is: 7,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.90 : 18,965.30 = 4,850.11 : x
  2. Step 2: Convert to fraction form
    12,641.90/18,965.30 = 4,850.11/x
  3. Step 3: Cross multiply
    12,641.90x = 18,965.30 × 4,850.11
  4. Step 4: Simplify right side
    12,641.90x = 91,983,719.52
  5. Step 5: Solve for x
    x = 91,983,719.52/12,641.90
  6. Step 6: Final answer
    x = 7,276.10

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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.