Home / 12,984.18-17,918.19-7,395.18

Finding the Fourth Proportional to 12,984.18, 17,918.19 and 7,395.18

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Solution

The fourth proportional to 12,984.18, 17,918.19 and 7,395.18 is: 10,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.18 : 17,918.19 = 7,395.18 : x
  2. Step 2: Convert to fraction form
    12,984.18/17,918.19 = 7,395.18/x
  3. Step 3: Cross multiply
    12,984.18x = 17,918.19 × 7,395.18
  4. Step 4: Simplify right side
    12,984.18x = 132,508,240.32
  5. Step 5: Solve for x
    x = 132,508,240.32/12,984.18
  6. Step 6: Final answer
    x = 10,205.36

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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.