Home / 14,211.70-21,317.61-3,680.97

Finding the Fourth Proportional to 14,211.70, 21,317.61 and 3,680.97

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Solution

The fourth proportional to 14,211.70, 21,317.61 and 3,680.97 is: 5,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.70 : 21,317.61 = 3,680.97 : x
  2. Step 2: Convert to fraction form
    14,211.70/21,317.61 = 3,680.97/x
  3. Step 3: Cross multiply
    14,211.70x = 21,317.61 × 3,680.97
  4. Step 4: Simplify right side
    14,211.70x = 78,469,411.18
  5. Step 5: Solve for x
    x = 78,469,411.18/14,211.70
  6. Step 6: Final answer
    x = 5,521.47

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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.