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Finding the Fourth Proportional to 9,630.72, 14,446.08 and 8,355.84

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Solution

The fourth proportional to 9,630.72, 14,446.08 and 8,355.84 is: 12,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,630.72 : 14,446.08 = 8,355.84 : x
  2. Step 2: Convert to fraction form
    9,630.72/14,446.08 = 8,355.84/x
  3. Step 3: Cross multiply
    9,630.72x = 14,446.08 × 8,355.84
  4. Step 4: Simplify right side
    9,630.72x = 120,709,133.11
  5. Step 5: Solve for x
    x = 120,709,133.11/9,630.72
  6. Step 6: Final answer
    x = 12,533.76

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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.