Home / 12,641.67-18,959.45-3,876.66

Finding the Fourth Proportional to 12,641.67, 18,959.45 and 3,876.66

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Solution

The fourth proportional to 12,641.67, 18,959.45 and 3,876.66 is: 5,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.67 : 18,959.45 = 3,876.66 : x
  2. Step 2: Convert to fraction form
    12,641.67/18,959.45 = 3,876.66/x
  3. Step 3: Cross multiply
    12,641.67x = 18,959.45 × 3,876.66
  4. Step 4: Simplify right side
    12,641.67x = 73,499,322.05
  5. Step 5: Solve for x
    x = 73,499,322.05/12,641.67
  6. Step 6: Final answer
    x = 5,814.05

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1.5x scale

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.