Home / 11,857.56-17,781.36-4,456.84

Finding the Fourth Proportional to 11,857.56, 17,781.36 and 4,456.84

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Solution

The fourth proportional to 11,857.56, 17,781.36 and 4,456.84 is: 6,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.56 : 17,781.36 = 4,456.84 : x
  2. Step 2: Convert to fraction form
    11,857.56/17,781.36 = 4,456.84/x
  3. Step 3: Cross multiply
    11,857.56x = 17,781.36 × 4,456.84
  4. Step 4: Simplify right side
    11,857.56x = 79,248,676.50
  5. Step 5: Solve for x
    x = 79,248,676.50/11,857.56
  6. Step 6: Final answer
    x = 6,683.39

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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.