Home / 9,138.16-12,608.97-5,552.38

Finding the Fourth Proportional to 9,138.16, 12,608.97 and 5,552.38

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Solution

The fourth proportional to 9,138.16, 12,608.97 and 5,552.38 is: 7,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.16 : 12,608.97 = 5,552.38 : x
  2. Step 2: Convert to fraction form
    9,138.16/12,608.97 = 5,552.38/x
  3. Step 3: Cross multiply
    9,138.16x = 12,608.97 × 5,552.38
  4. Step 4: Simplify right side
    9,138.16x = 70,009,792.85
  5. Step 5: Solve for x
    x = 70,009,792.85/9,138.16
  6. Step 6: Final answer
    x = 7,661.26

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Half scale
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Double 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.