Home / 18,607.56-25,678.49-10,109.61

Finding the Fourth Proportional to 18,607.56, 25,678.49 and 10,109.61

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Solution

The fourth proportional to 18,607.56, 25,678.49 and 10,109.61 is: 13,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.56 : 25,678.49 = 10,109.61 : x
  2. Step 2: Convert to fraction form
    18,607.56/25,678.49 = 10,109.61/x
  3. Step 3: Cross multiply
    18,607.56x = 25,678.49 × 10,109.61
  4. Step 4: Simplify right side
    18,607.56x = 259,599,468.74
  5. Step 5: Solve for x
    x = 259,599,468.74/18,607.56
  6. Step 6: Final answer
    x = 13,951.29

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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.