Home / 10,290.29-14,187.69-8,399.97

Finding the Fourth Proportional to 10,290.29, 14,187.69 and 8,399.97

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Solution

The fourth proportional to 10,290.29, 14,187.69 and 8,399.97 is: 11,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.29 : 14,187.69 = 8,399.97 : x
  2. Step 2: Convert to fraction form
    10,290.29/14,187.69 = 8,399.97/x
  3. Step 3: Cross multiply
    10,290.29x = 14,187.69 × 8,399.97
  4. Step 4: Simplify right side
    10,290.29x = 119,176,170.37
  5. Step 5: Solve for x
    x = 119,176,170.37/10,290.29
  6. Step 6: Final answer
    x = 11,581.43

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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.