Home / 11,478.97-17,218.64-3,158.93

Finding the Fourth Proportional to 11,478.97, 17,218.64 and 3,158.93

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Solution

The fourth proportional to 11,478.97, 17,218.64 and 3,158.93 is: 4,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.97 : 17,218.64 = 3,158.93 : x
  2. Step 2: Convert to fraction form
    11,478.97/17,218.64 = 3,158.93/x
  3. Step 3: Cross multiply
    11,478.97x = 17,218.64 × 3,158.93
  4. Step 4: Simplify right side
    11,478.97x = 54,392,529.40
  5. Step 5: Solve for x
    x = 54,392,529.40/11,478.97
  6. Step 6: Final answer
    x = 4,738.45

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Similar ratio
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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.