Home / 12,876.71-19,282.03-8,922.35

Finding the Fourth Proportional to 12,876.71, 19,282.03 and 8,922.35

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Solution

The fourth proportional to 12,876.71, 19,282.03 and 8,922.35 is: 13,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.71 : 19,282.03 = 8,922.35 : x
  2. Step 2: Convert to fraction form
    12,876.71/19,282.03 = 8,922.35/x
  3. Step 3: Cross multiply
    12,876.71x = 19,282.03 × 8,922.35
  4. Step 4: Simplify right side
    12,876.71x = 172,041,042.68
  5. Step 5: Solve for x
    x = 172,041,042.68/12,876.71
  6. Step 6: Final answer
    x = 13,360.64

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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.