Home / 11,611.29-17,424.24-4,947.78

Finding the Fourth Proportional to 11,611.29, 17,424.24 and 4,947.78

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Solution

The fourth proportional to 11,611.29, 17,424.24 and 4,947.78 is: 7,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.29 : 17,424.24 = 4,947.78 : x
  2. Step 2: Convert to fraction form
    11,611.29/17,424.24 = 4,947.78/x
  3. Step 3: Cross multiply
    11,611.29x = 17,424.24 × 4,947.78
  4. Step 4: Simplify right side
    11,611.29x = 86,211,306.19
  5. Step 5: Solve for x
    x = 86,211,306.19/11,611.29
  6. Step 6: Final answer
    x = 7,424.78

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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.