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Finding the Fourth Proportional to 7,165.39, 9,893.06 and 5,483.79

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Solution

The fourth proportional to 7,165.39, 9,893.06 and 5,483.79 is: 7,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.39 : 9,893.06 = 5,483.79 : x
  2. Step 2: Convert to fraction form
    7,165.39/9,893.06 = 5,483.79/x
  3. Step 3: Cross multiply
    7,165.39x = 9,893.06 × 5,483.79
  4. Step 4: Simplify right side
    7,165.39x = 54,251,436.08
  5. Step 5: Solve for x
    x = 54,251,436.08/7,165.39
  6. Step 6: Final answer
    x = 7,571.32

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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.