Home / 11,100.20-16,658.40-7,401.20

Finding the Fourth Proportional to 11,100.20, 16,658.40 and 7,401.20

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Solution

The fourth proportional to 11,100.20, 16,658.40 and 7,401.20 is: 11,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.20 : 16,658.40 = 7,401.20 : x
  2. Step 2: Convert to fraction form
    11,100.20/16,658.40 = 7,401.20/x
  3. Step 3: Cross multiply
    11,100.20x = 16,658.40 × 7,401.20
  4. Step 4: Simplify right side
    11,100.20x = 123,292,150.08
  5. Step 5: Solve for x
    x = 123,292,150.08/11,100.20
  6. Step 6: Final answer
    x = 11,107.20

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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.