Home / 11,211.32-16,813.04-3,311.74

Finding the Fourth Proportional to 11,211.32, 16,813.04 and 3,311.74

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Solution

The fourth proportional to 11,211.32, 16,813.04 and 3,311.74 is: 4,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.32 : 16,813.04 = 3,311.74 : x
  2. Step 2: Convert to fraction form
    11,211.32/16,813.04 = 3,311.74/x
  3. Step 3: Cross multiply
    11,211.32x = 16,813.04 × 3,311.74
  4. Step 4: Simplify right side
    11,211.32x = 55,680,417.09
  5. Step 5: Solve for x
    x = 55,680,417.09/11,211.32
  6. Step 6: Final answer
    x = 4,966.45

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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.