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Finding the Fourth Proportional to 7,150.63, 9,868.08 and 4,006.75

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Solution

The fourth proportional to 7,150.63, 9,868.08 and 4,006.75 is: 5,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.63 : 9,868.08 = 4,006.75 : x
  2. Step 2: Convert to fraction form
    7,150.63/9,868.08 = 4,006.75/x
  3. Step 3: Cross multiply
    7,150.63x = 9,868.08 × 4,006.75
  4. Step 4: Simplify right side
    7,150.63x = 39,538,929.54
  5. Step 5: Solve for x
    x = 39,538,929.54/7,150.63
  6. Step 6: Final answer
    x = 5,529.43

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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.