Home / 18,844.79-25,996.34-12,876.71

Finding the Fourth Proportional to 18,844.79, 25,996.34 and 12,876.71

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Solution

The fourth proportional to 18,844.79, 25,996.34 and 12,876.71 is: 17,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.79 : 25,996.34 = 12,876.71 : x
  2. Step 2: Convert to fraction form
    18,844.79/25,996.34 = 12,876.71/x
  3. Step 3: Cross multiply
    18,844.79x = 25,996.34 × 12,876.71
  4. Step 4: Simplify right side
    18,844.79x = 334,747,233.45
  5. Step 5: Solve for x
    x = 334,747,233.45/18,844.79
  6. Step 6: Final answer
    x = 17,763.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.