Home / 13,765.14-18,995.97-8,176.02

Finding the Fourth Proportional to 13,765.14, 18,995.97 and 8,176.02

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Solution

The fourth proportional to 13,765.14, 18,995.97 and 8,176.02 is: 11,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.14 : 18,995.97 = 8,176.02 : x
  2. Step 2: Convert to fraction form
    13,765.14/18,995.97 = 8,176.02/x
  3. Step 3: Cross multiply
    13,765.14x = 18,995.97 × 8,176.02
  4. Step 4: Simplify right side
    13,765.14x = 155,311,430.64
  5. Step 5: Solve for x
    x = 155,311,430.64/13,765.14
  6. Step 6: Final answer
    x = 11,282.95

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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.