Home / 13,754.07-20,631.09-4,986.09

Finding the Fourth Proportional to 13,754.07, 20,631.09 and 4,986.09

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Solution

The fourth proportional to 13,754.07, 20,631.09 and 4,986.09 is: 7,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.07 : 20,631.09 = 4,986.09 : x
  2. Step 2: Convert to fraction form
    13,754.07/20,631.09 = 4,986.09/x
  3. Step 3: Cross multiply
    13,754.07x = 20,631.09 × 4,986.09
  4. Step 4: Simplify right side
    13,754.07x = 102,868,471.54
  5. Step 5: Solve for x
    x = 102,868,471.54/13,754.07
  6. Step 6: Final answer
    x = 7,479.13

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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.