Home / 11,166.24-16,815.36-9,722.72

Finding the Fourth Proportional to 11,166.24, 16,815.36 and 9,722.72

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Solution

The fourth proportional to 11,166.24, 16,815.36 and 9,722.72 is: 14,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.24 : 16,815.36 = 9,722.72 : x
  2. Step 2: Convert to fraction form
    11,166.24/16,815.36 = 9,722.72/x
  3. Step 3: Cross multiply
    11,166.24x = 16,815.36 × 9,722.72
  4. Step 4: Simplify right side
    11,166.24x = 163,491,036.98
  5. Step 5: Solve for x
    x = 163,491,036.98/11,166.24
  6. Step 6: Final answer
    x = 14,641.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.