Home / 18,609.92-25,681.44-10,111.76

Finding the Fourth Proportional to 18,609.92, 25,681.44 and 10,111.76

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Solution

The fourth proportional to 18,609.92, 25,681.44 and 10,111.76 is: 13,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.92 : 25,681.44 = 10,111.76 : x
  2. Step 2: Convert to fraction form
    18,609.92/25,681.44 = 10,111.76/x
  3. Step 3: Cross multiply
    18,609.92x = 25,681.44 × 10,111.76
  4. Step 4: Simplify right side
    18,609.92x = 259,684,557.73
  5. Step 5: Solve for x
    x = 259,684,557.73/18,609.92
  6. Step 6: Final answer
    x = 13,954.09

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Double scale
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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.