Home / 18,447.13-27,631.41-9,655.39

Finding the Fourth Proportional to 18,447.13, 27,631.41 and 9,655.39

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Solution

The fourth proportional to 18,447.13, 27,631.41 and 9,655.39 is: 14,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.13 : 27,631.41 = 9,655.39 : x
  2. Step 2: Convert to fraction form
    18,447.13/27,631.41 = 9,655.39/x
  3. Step 3: Cross multiply
    18,447.13x = 27,631.41 × 9,655.39
  4. Step 4: Simplify right side
    18,447.13x = 266,792,039.80
  5. Step 5: Solve for x
    x = 266,792,039.80/18,447.13
  6. Step 6: Final answer
    x = 14,462.52

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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.