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Finding the Fourth Proportional to 6,871.24, 9,478.92 and 4,630.24

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Solution

The fourth proportional to 6,871.24, 9,478.92 and 4,630.24 is: 6,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.24 : 9,478.92 = 4,630.24 : x
  2. Step 2: Convert to fraction form
    6,871.24/9,478.92 = 4,630.24/x
  3. Step 3: Cross multiply
    6,871.24x = 9,478.92 × 4,630.24
  4. Step 4: Simplify right side
    6,871.24x = 43,889,674.54
  5. Step 5: Solve for x
    x = 43,889,674.54/6,871.24
  6. Step 6: Final answer
    x = 6,387.45

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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.