Home / 9,179.21-12,667.42-5,200.23

Finding the Fourth Proportional to 9,179.21, 12,667.42 and 5,200.23

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Solution

The fourth proportional to 9,179.21, 12,667.42 and 5,200.23 is: 7,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.21 : 12,667.42 = 5,200.23 : x
  2. Step 2: Convert to fraction form
    9,179.21/12,667.42 = 5,200.23/x
  3. Step 3: Cross multiply
    9,179.21x = 12,667.42 × 5,200.23
  4. Step 4: Simplify right side
    9,179.21x = 65,873,497.51
  5. Step 5: Solve for x
    x = 65,873,497.51/9,179.21
  6. Step 6: Final answer
    x = 7,176.38

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Half scale
Find fourth proportional to 18,358.42, 25,334.84 and 10,400.46
Double scale
Find fourth proportional to 9,180.21, 12,668.80 and 5,201.23
Similar ratio
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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.