Home / 8,015.20-11,064.07-7,174.42

Finding the Fourth Proportional to 8,015.20, 11,064.07 and 7,174.42

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Solution

The fourth proportional to 8,015.20, 11,064.07 and 7,174.42 is: 9,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.20 : 11,064.07 = 7,174.42 : x
  2. Step 2: Convert to fraction form
    8,015.20/11,064.07 = 7,174.42/x
  3. Step 3: Cross multiply
    8,015.20x = 11,064.07 × 7,174.42
  4. Step 4: Simplify right side
    8,015.20x = 79,378,280.98
  5. Step 5: Solve for x
    x = 79,378,280.98/8,015.20
  6. Step 6: Final answer
    x = 9,903.47

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Half scale
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Double scale
Find fourth proportional to 8,016.20, 11,065.45 and 7,175.42
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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.