Home / 11,403.88-17,103.39-8,769.76

Finding the Fourth Proportional to 11,403.88, 17,103.39 and 8,769.76

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Solution

The fourth proportional to 11,403.88, 17,103.39 and 8,769.76 is: 13,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.88 : 17,103.39 = 8,769.76 : x
  2. Step 2: Convert to fraction form
    11,403.88/17,103.39 = 8,769.76/x
  3. Step 3: Cross multiply
    11,403.88x = 17,103.39 × 8,769.76
  4. Step 4: Simplify right side
    11,403.88x = 149,992,625.49
  5. Step 5: Solve for x
    x = 149,992,625.49/11,403.88
  6. Step 6: Final answer
    x = 13,152.77

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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.