Home / 11,781.44-16,258.28-6,403.84

Finding the Fourth Proportional to 11,781.44, 16,258.28 and 6,403.84

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Solution

The fourth proportional to 11,781.44, 16,258.28 and 6,403.84 is: 8,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.44 : 16,258.28 = 6,403.84 : x
  2. Step 2: Convert to fraction form
    11,781.44/16,258.28 = 6,403.84/x
  3. Step 3: Cross multiply
    11,781.44x = 16,258.28 × 6,403.84
  4. Step 4: Simplify right side
    11,781.44x = 104,115,423.80
  5. Step 5: Solve for x
    x = 104,115,423.80/11,781.44
  6. Step 6: Final answer
    x = 8,837.24

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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.