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Finding the Fourth Proportional to 8,015.70, 11,064.76 and 7,174.92

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Solution

The fourth proportional to 8,015.70, 11,064.76 and 7,174.92 is: 9,904.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.70 : 11,064.76 = 7,174.92 : x
  2. Step 2: Convert to fraction form
    8,015.70/11,064.76 = 7,174.92/x
  3. Step 3: Cross multiply
    8,015.70x = 11,064.76 × 7,174.92
  4. Step 4: Simplify right side
    8,015.70x = 79,388,767.82
  5. Step 5: Solve for x
    x = 79,388,767.82/8,015.70
  6. Step 6: Final answer
    x = 9,904.16

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Half scale
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Double scale
Find fourth proportional to 8,016.70, 11,066.14 and 7,175.92
Similar ratio
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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.