Home / 12,546.49-17,309.21-7,240.28

Finding the Fourth Proportional to 12,546.49, 17,309.21 and 7,240.28

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Solution

The fourth proportional to 12,546.49, 17,309.21 and 7,240.28 is: 9,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.49 : 17,309.21 = 7,240.28 : x
  2. Step 2: Convert to fraction form
    12,546.49/17,309.21 = 7,240.28/x
  3. Step 3: Cross multiply
    12,546.49x = 17,309.21 × 7,240.28
  4. Step 4: Simplify right side
    12,546.49x = 125,323,404.23
  5. Step 5: Solve for x
    x = 125,323,404.23/12,546.49
  6. Step 6: Final answer
    x = 9,988.73

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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.