Home / 8,939.41-13,400.39-4,258.16

Finding the Fourth Proportional to 8,939.41, 13,400.39 and 4,258.16

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Solution

The fourth proportional to 8,939.41, 13,400.39 and 4,258.16 is: 6,383.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.41 : 13,400.39 = 4,258.16 : x
  2. Step 2: Convert to fraction form
    8,939.41/13,400.39 = 4,258.16/x
  3. Step 3: Cross multiply
    8,939.41x = 13,400.39 × 4,258.16
  4. Step 4: Simplify right side
    8,939.41x = 57,061,004.68
  5. Step 5: Solve for x
    x = 57,061,004.68/8,939.41
  6. Step 6: Final answer
    x = 6,383.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.