Home / 9,398.22-12,969.75-5,149.36

Finding the Fourth Proportional to 9,398.22, 12,969.75 and 5,149.36

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Solution

The fourth proportional to 9,398.22, 12,969.75 and 5,149.36 is: 7,106.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.22 : 12,969.75 = 5,149.36 : x
  2. Step 2: Convert to fraction form
    9,398.22/12,969.75 = 5,149.36/x
  3. Step 3: Cross multiply
    9,398.22x = 12,969.75 × 5,149.36
  4. Step 4: Simplify right side
    9,398.22x = 66,785,911.86
  5. Step 5: Solve for x
    x = 66,785,911.86/9,398.22
  6. Step 6: Final answer
    x = 7,106.23

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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.