Home / 9,916.19-13,684.34-5,724.44

Finding the Fourth Proportional to 9,916.19, 13,684.34 and 5,724.44

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Solution

The fourth proportional to 9,916.19, 13,684.34 and 5,724.44 is: 7,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.19 : 13,684.34 = 5,724.44 : x
  2. Step 2: Convert to fraction form
    9,916.19/13,684.34 = 5,724.44/x
  3. Step 3: Cross multiply
    9,916.19x = 13,684.34 × 5,724.44
  4. Step 4: Simplify right side
    9,916.19x = 78,335,183.27
  5. Step 5: Solve for x
    x = 78,335,183.27/9,916.19
  6. Step 6: Final answer
    x = 7,899.73

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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.