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Finding the Fourth Proportional to 9,960.33, 14,921.05 and 7,758.75

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Solution

The fourth proportional to 9,960.33, 14,921.05 and 7,758.75 is: 11,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.33 : 14,921.05 = 7,758.75 : x
  2. Step 2: Convert to fraction form
    9,960.33/14,921.05 = 7,758.75/x
  3. Step 3: Cross multiply
    9,960.33x = 14,921.05 × 7,758.75
  4. Step 4: Simplify right side
    9,960.33x = 115,768,696.69
  5. Step 5: Solve for x
    x = 115,768,696.69/9,960.33
  6. Step 6: Final answer
    x = 11,622.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.