Home / 9,660.90-13,400.26-9,404.84

Finding the Fourth Proportional to 9,660.90, 13,400.26 and 9,404.84

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Solution

The fourth proportional to 9,660.90, 13,400.26 and 9,404.84 is: 13,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.90 : 13,400.26 = 9,404.84 : x
  2. Step 2: Convert to fraction form
    9,660.90/13,400.26 = 9,404.84/x
  3. Step 3: Cross multiply
    9,660.90x = 13,400.26 × 9,404.84
  4. Step 4: Simplify right side
    9,660.90x = 126,027,311.25
  5. Step 5: Solve for x
    x = 126,027,311.25/9,660.90
  6. Step 6: Final answer
    x = 13,045.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.