Home / 11,431.18-17,143.80-4,853.98

Finding the Fourth Proportional to 11,431.18, 17,143.80 and 4,853.98

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Solution

The fourth proportional to 11,431.18, 17,143.80 and 4,853.98 is: 7,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.18 : 17,143.80 = 4,853.98 : x
  2. Step 2: Convert to fraction form
    11,431.18/17,143.80 = 4,853.98/x
  3. Step 3: Cross multiply
    11,431.18x = 17,143.80 × 4,853.98
  4. Step 4: Simplify right side
    11,431.18x = 83,215,662.32
  5. Step 5: Solve for x
    x = 83,215,662.32/11,431.18
  6. Step 6: Final answer
    x = 7,279.71

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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.