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Finding the Fourth Proportional to 9,009.40, 12,434.02 and 5,471.64

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Solution

The fourth proportional to 9,009.40, 12,434.02 and 5,471.64 is: 7,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.40 : 12,434.02 = 5,471.64 : x
  2. Step 2: Convert to fraction form
    9,009.40/12,434.02 = 5,471.64/x
  3. Step 3: Cross multiply
    9,009.40x = 12,434.02 × 5,471.64
  4. Step 4: Simplify right side
    9,009.40x = 68,034,481.19
  5. Step 5: Solve for x
    x = 68,034,481.19/9,009.40
  6. Step 6: Final answer
    x = 7,551.50

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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.