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Finding the Fourth Proportional to 18,909, 26,094.45 and 10,951.65

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Solution

The fourth proportional to 18,909, 26,094.45 and 10,951.65 is: 15,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909 : 26,094.45 = 10,951.65 : x
  2. Step 2: Convert to fraction form
    18,909/26,094.45 = 10,951.65/x
  3. Step 3: Cross multiply
    18,909x = 26,094.45 × 10,951.65
  4. Step 4: Simplify right side
    18,909x = 285,777,283.34
  5. Step 5: Solve for x
    x = 285,777,283.34/18,909
  6. Step 6: Final answer
    x = 15,113.29

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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.