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Finding the Fourth Proportional to 7,472.16, 10,308.88 and 4,955.44

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Solution

The fourth proportional to 7,472.16, 10,308.88 and 4,955.44 is: 6,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.16 : 10,308.88 = 4,955.44 : x
  2. Step 2: Convert to fraction form
    7,472.16/10,308.88 = 4,955.44/x
  3. Step 3: Cross multiply
    7,472.16x = 10,308.88 × 4,955.44
  4. Step 4: Simplify right side
    7,472.16x = 51,085,036.31
  5. Step 5: Solve for x
    x = 51,085,036.31/7,472.16
  6. Step 6: Final answer
    x = 6,836.72

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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.