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Finding the Fourth Proportional to 10,905.11, 15,033.94 and 7,362.71

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Solution

The fourth proportional to 10,905.11, 15,033.94 and 7,362.71 is: 10,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.11 : 15,033.94 = 7,362.71 : x
  2. Step 2: Convert to fraction form
    10,905.11/15,033.94 = 7,362.71/x
  3. Step 3: Cross multiply
    10,905.11x = 15,033.94 × 7,362.71
  4. Step 4: Simplify right side
    10,905.11x = 110,690,503.56
  5. Step 5: Solve for x
    x = 110,690,503.56/10,905.11
  6. Step 6: Final answer
    x = 10,150.33

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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.