Home / 11,021.28-16,533.60-7,658.40

Finding the Fourth Proportional to 11,021.28, 16,533.60 and 7,658.40

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Solution

The fourth proportional to 11,021.28, 16,533.60 and 7,658.40 is: 11,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.28 : 16,533.60 = 7,658.40 : x
  2. Step 2: Convert to fraction form
    11,021.28/16,533.60 = 7,658.40/x
  3. Step 3: Cross multiply
    11,021.28x = 16,533.60 × 7,658.40
  4. Step 4: Simplify right side
    11,021.28x = 126,620,922.24
  5. Step 5: Solve for x
    x = 126,620,922.24/11,021.28
  6. Step 6: Final answer
    x = 11,488.77

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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.