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Finding the Fourth Proportional to 8,807.87, 12,157.16 and 5,448.73

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Solution

The fourth proportional to 8,807.87, 12,157.16 and 5,448.73 is: 7,520.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.87 : 12,157.16 = 5,448.73 : x
  2. Step 2: Convert to fraction form
    8,807.87/12,157.16 = 5,448.73/x
  3. Step 3: Cross multiply
    8,807.87x = 12,157.16 × 5,448.73
  4. Step 4: Simplify right side
    8,807.87x = 66,241,082.41
  5. Step 5: Solve for x
    x = 66,241,082.41/8,807.87
  6. Step 6: Final answer
    x = 7,520.67

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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.