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Finding the Fourth Proportional to 9,007.74, 13,511.61 and 7,679.34

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Solution

The fourth proportional to 9,007.74, 13,511.61 and 7,679.34 is: 11,519.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.74 : 13,511.61 = 7,679.34 : x
  2. Step 2: Convert to fraction form
    9,007.74/13,511.61 = 7,679.34/x
  3. Step 3: Cross multiply
    9,007.74x = 13,511.61 × 7,679.34
  4. Step 4: Simplify right side
    9,007.74x = 103,760,247.14
  5. Step 5: Solve for x
    x = 103,760,247.14/9,007.74
  6. Step 6: Final answer
    x = 11,519.01

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.