Home / 9,515.39-13,131.27-5,323.64

Finding the Fourth Proportional to 9,515.39, 13,131.27 and 5,323.64

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Solution

The fourth proportional to 9,515.39, 13,131.27 and 5,323.64 is: 7,346.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.39 : 13,131.27 = 5,323.64 : x
  2. Step 2: Convert to fraction form
    9,515.39/13,131.27 = 5,323.64/x
  3. Step 3: Cross multiply
    9,515.39x = 13,131.27 × 5,323.64
  4. Step 4: Simplify right side
    9,515.39x = 69,906,088.57
  5. Step 5: Solve for x
    x = 69,906,088.57/9,515.39
  6. Step 6: Final answer
    x = 7,346.64

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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.