Home / 18,647.28-25,733.86-10,691.01

Finding the Fourth Proportional to 18,647.28, 25,733.86 and 10,691.01

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Solution

The fourth proportional to 18,647.28, 25,733.86 and 10,691.01 is: 14,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.28 : 25,733.86 = 10,691.01 : x
  2. Step 2: Convert to fraction form
    18,647.28/25,733.86 = 10,691.01/x
  3. Step 3: Cross multiply
    18,647.28x = 25,733.86 × 10,691.01
  4. Step 4: Simplify right side
    18,647.28x = 275,120,927.87
  5. Step 5: Solve for x
    x = 275,120,927.87/18,647.28
  6. Step 6: Final answer
    x = 14,753.94

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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.