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Finding the Fourth Proportional to 7,168.08, 9,877.37 and 5,489.49

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Solution

The fourth proportional to 7,168.08, 9,877.37 and 5,489.49 is: 7,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.08 : 9,877.37 = 5,489.49 : x
  2. Step 2: Convert to fraction form
    7,168.08/9,877.37 = 5,489.49/x
  3. Step 3: Cross multiply
    7,168.08x = 9,877.37 × 5,489.49
  4. Step 4: Simplify right side
    7,168.08x = 54,221,696.39
  5. Step 5: Solve for x
    x = 54,221,696.39/7,168.08
  6. Step 6: Final answer
    x = 7,564.33

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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.