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Finding the Fourth Proportional to 9,671.46, 13,346.60 and 5,479.70

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Solution

The fourth proportional to 9,671.46, 13,346.60 and 5,479.70 is: 7,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671.46 : 13,346.60 = 5,479.70 : x
  2. Step 2: Convert to fraction form
    9,671.46/13,346.60 = 5,479.70/x
  3. Step 3: Cross multiply
    9,671.46x = 13,346.60 × 5,479.70
  4. Step 4: Simplify right side
    9,671.46x = 73,135,364.02
  5. Step 5: Solve for x
    x = 73,135,364.02/9,671.46
  6. Step 6: Final answer
    x = 7,561.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.