Home / 11,081.71-15,290.67-6,605.88

Finding the Fourth Proportional to 11,081.71, 15,290.67 and 6,605.88

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Solution

The fourth proportional to 11,081.71, 15,290.67 and 6,605.88 is: 9,114.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.71 : 15,290.67 = 6,605.88 : x
  2. Step 2: Convert to fraction form
    11,081.71/15,290.67 = 6,605.88/x
  3. Step 3: Cross multiply
    11,081.71x = 15,290.67 × 6,605.88
  4. Step 4: Simplify right side
    11,081.71x = 101,008,358.51
  5. Step 5: Solve for x
    x = 101,008,358.51/11,081.71
  6. Step 6: Final answer
    x = 9,114.87

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1.5x scale

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.