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Finding the Fourth Proportional to 9,732.88, 13,440.72 and 6,756.40

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Solution

The fourth proportional to 9,732.88, 13,440.72 and 6,756.40 is: 9,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,732.88 : 13,440.72 = 6,756.40 : x
  2. Step 2: Convert to fraction form
    9,732.88/13,440.72 = 6,756.40/x
  3. Step 3: Cross multiply
    9,732.88x = 13,440.72 × 6,756.40
  4. Step 4: Simplify right side
    9,732.88x = 90,810,880.61
  5. Step 5: Solve for x
    x = 90,810,880.61/9,732.88
  6. Step 6: Final answer
    x = 9,330.32

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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.