Home / 9,313.39-12,852.71-5,121.64

Finding the Fourth Proportional to 9,313.39, 12,852.71 and 5,121.64

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Solution

The fourth proportional to 9,313.39, 12,852.71 and 5,121.64 is: 7,067.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.39 : 12,852.71 = 5,121.64 : x
  2. Step 2: Convert to fraction form
    9,313.39/12,852.71 = 5,121.64/x
  3. Step 3: Cross multiply
    9,313.39x = 12,852.71 × 5,121.64
  4. Step 4: Simplify right side
    9,313.39x = 65,826,953.64
  5. Step 5: Solve for x
    x = 65,826,953.64/9,313.39
  6. Step 6: Final answer
    x = 7,067.99

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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.