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Finding the Fourth Proportional to 9,152.58, 13,728.87 and 2,578.62

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Solution

The fourth proportional to 9,152.58, 13,728.87 and 2,578.62 is: 3,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.58 : 13,728.87 = 2,578.62 : x
  2. Step 2: Convert to fraction form
    9,152.58/13,728.87 = 2,578.62/x
  3. Step 3: Cross multiply
    9,152.58x = 13,728.87 × 2,578.62
  4. Step 4: Simplify right side
    9,152.58x = 35,401,538.76
  5. Step 5: Solve for x
    x = 35,401,538.76/9,152.58
  6. Step 6: Final answer
    x = 3,867.93

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Double 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.