Home / 9,993.11-13,790.08-5,516.81

Finding the Fourth Proportional to 9,993.11, 13,790.08 and 5,516.81

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Solution

The fourth proportional to 9,993.11, 13,790.08 and 5,516.81 is: 7,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.11 : 13,790.08 = 5,516.81 : x
  2. Step 2: Convert to fraction form
    9,993.11/13,790.08 = 5,516.81/x
  3. Step 3: Cross multiply
    9,993.11x = 13,790.08 × 5,516.81
  4. Step 4: Simplify right side
    9,993.11x = 76,077,240.90
  5. Step 5: Solve for x
    x = 76,077,240.90/9,993.11
  6. Step 6: Final answer
    x = 7,612.97

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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.