Home / 18,493.78-25,521.33-10,109.74

Finding the Fourth Proportional to 18,493.78, 25,521.33 and 10,109.74

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Solution

The fourth proportional to 18,493.78, 25,521.33 and 10,109.74 is: 13,951.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.78 : 25,521.33 = 10,109.74 : x
  2. Step 2: Convert to fraction form
    18,493.78/25,521.33 = 10,109.74/x
  3. Step 3: Cross multiply
    18,493.78x = 25,521.33 × 10,109.74
  4. Step 4: Simplify right side
    18,493.78x = 258,014,010.75
  5. Step 5: Solve for x
    x = 258,014,010.75/18,493.78
  6. Step 6: Final answer
    x = 13,951.39

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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.