Home / 9,161.52-13,742.40-3,896.72

Finding the Fourth Proportional to 9,161.52, 13,742.40 and 3,896.72

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Solution

The fourth proportional to 9,161.52, 13,742.40 and 3,896.72 is: 5,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.52 : 13,742.40 = 3,896.72 : x
  2. Step 2: Convert to fraction form
    9,161.52/13,742.40 = 3,896.72/x
  3. Step 3: Cross multiply
    9,161.52x = 13,742.40 × 3,896.72
  4. Step 4: Simplify right side
    9,161.52x = 53,550,284.93
  5. Step 5: Solve for x
    x = 53,550,284.93/9,161.52
  6. Step 6: Final answer
    x = 5,845.13

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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.