Home / 10,211.62-15,317.44-3,191.67

Finding the Fourth Proportional to 10,211.62, 15,317.44 and 3,191.67

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Solution

The fourth proportional to 10,211.62, 15,317.44 and 3,191.67 is: 4,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.62 : 15,317.44 = 3,191.67 : x
  2. Step 2: Convert to fraction form
    10,211.62/15,317.44 = 3,191.67/x
  3. Step 3: Cross multiply
    10,211.62x = 15,317.44 × 3,191.67
  4. Step 4: Simplify right side
    10,211.62x = 48,888,258.25
  5. Step 5: Solve for x
    x = 48,888,258.25/10,211.62
  6. Step 6: Final answer
    x = 4,787.51

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Half scale
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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.