Home / 11,318.85-15,620.45-6,841.71

Finding the Fourth Proportional to 11,318.85, 15,620.45 and 6,841.71

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Solution

The fourth proportional to 11,318.85, 15,620.45 and 6,841.71 is: 9,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.85 : 15,620.45 = 6,841.71 : x
  2. Step 2: Convert to fraction form
    11,318.85/15,620.45 = 6,841.71/x
  3. Step 3: Cross multiply
    11,318.85x = 15,620.45 × 6,841.71
  4. Step 4: Simplify right side
    11,318.85x = 106,870,554.76
  5. Step 5: Solve for x
    x = 106,870,554.76/11,318.85
  6. Step 6: Final answer
    x = 9,441.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.