Home / 12,960.39-17,887.07-7,296.24

Finding the Fourth Proportional to 12,960.39, 17,887.07 and 7,296.24

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Solution

The fourth proportional to 12,960.39, 17,887.07 and 7,296.24 is: 10,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.39 : 17,887.07 = 7,296.24 : x
  2. Step 2: Convert to fraction form
    12,960.39/17,887.07 = 7,296.24/x
  3. Step 3: Cross multiply
    12,960.39x = 17,887.07 × 7,296.24
  4. Step 4: Simplify right side
    12,960.39x = 130,508,319.14
  5. Step 5: Solve for x
    x = 130,508,319.14/12,960.39
  6. Step 6: Final answer
    x = 10,069.78

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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.