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Finding the Fourth Proportional to 7,647.92, 10,554 and 4,504.64

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Solution

The fourth proportional to 7,647.92, 10,554 and 4,504.64 is: 6,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.92 : 10,554 = 4,504.64 : x
  2. Step 2: Convert to fraction form
    7,647.92/10,554 = 4,504.64/x
  3. Step 3: Cross multiply
    7,647.92x = 10,554 × 4,504.64
  4. Step 4: Simplify right side
    7,647.92x = 47,541,970.56
  5. Step 5: Solve for x
    x = 47,541,970.56/7,647.92
  6. Step 6: Final answer
    x = 6,216.33

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1.5x scale

Why These Related Problems?

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