Home / 13,712.21-20,552.78-6,301.36

Finding the Fourth Proportional to 13,712.21, 20,552.78 and 6,301.36

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Solution

The fourth proportional to 13,712.21, 20,552.78 and 6,301.36 is: 9,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.21 : 20,552.78 = 6,301.36 : x
  2. Step 2: Convert to fraction form
    13,712.21/20,552.78 = 6,301.36/x
  3. Step 3: Cross multiply
    13,712.21x = 20,552.78 × 6,301.36
  4. Step 4: Simplify right side
    13,712.21x = 129,510,382.89
  5. Step 5: Solve for x
    x = 129,510,382.89/13,712.21
  6. Step 6: Final answer
    x = 9,444.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.