Home / 11,004.12-15,188.58-6,815.88

Finding the Fourth Proportional to 11,004.12, 15,188.58 and 6,815.88

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Solution

The fourth proportional to 11,004.12, 15,188.58 and 6,815.88 is: 9,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,004.12 : 15,188.58 = 6,815.88 : x
  2. Step 2: Convert to fraction form
    11,004.12/15,188.58 = 6,815.88/x
  3. Step 3: Cross multiply
    11,004.12x = 15,188.58 × 6,815.88
  4. Step 4: Simplify right side
    11,004.12x = 103,523,538.65
  5. Step 5: Solve for x
    x = 103,523,538.65/11,004.12
  6. Step 6: Final answer
    x = 9,407.71

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Half scale
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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.