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Finding the Fourth Proportional to 9,750.62, 13,455.78 and 5,558.78

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Solution

The fourth proportional to 9,750.62, 13,455.78 and 5,558.78 is: 7,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,750.62 : 13,455.78 = 5,558.78 : x
  2. Step 2: Convert to fraction form
    9,750.62/13,455.78 = 5,558.78/x
  3. Step 3: Cross multiply
    9,750.62x = 13,455.78 × 5,558.78
  4. Step 4: Simplify right side
    9,750.62x = 74,797,720.75
  5. Step 5: Solve for x
    x = 74,797,720.75/9,750.62
  6. Step 6: Final answer
    x = 7,671.07

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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.