Home / 9,121.17-13,681.77-2,195.67

Finding the Fourth Proportional to 9,121.17, 13,681.77 and 2,195.67

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Solution

The fourth proportional to 9,121.17, 13,681.77 and 2,195.67 is: 3,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.17 : 13,681.77 = 2,195.67 : x
  2. Step 2: Convert to fraction form
    9,121.17/13,681.77 = 2,195.67/x
  3. Step 3: Cross multiply
    9,121.17x = 13,681.77 × 2,195.67
  4. Step 4: Simplify right side
    9,121.17x = 30,040,651.94
  5. Step 5: Solve for x
    x = 30,040,651.94/9,121.17
  6. Step 6: Final answer
    x = 3,293.51

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Half scale
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Double scale
Find fourth proportional to 9,122.17, 13,683.27 and 2,196.67
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.