Home / 11,081.61-15,294.60-6,605.65

Finding the Fourth Proportional to 11,081.61, 15,294.60 and 6,605.65

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Solution

The fourth proportional to 11,081.61, 15,294.60 and 6,605.65 is: 9,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.61 : 15,294.60 = 6,605.65 : x
  2. Step 2: Convert to fraction form
    11,081.61/15,294.60 = 6,605.65/x
  3. Step 3: Cross multiply
    11,081.61x = 15,294.60 × 6,605.65
  4. Step 4: Simplify right side
    11,081.61x = 101,030,736.25
  5. Step 5: Solve for x
    x = 101,030,736.25/11,081.61
  6. Step 6: Final answer
    x = 9,116.97

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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.