Home / 11,142.77-15,377.44-6,363.49

Finding the Fourth Proportional to 11,142.77, 15,377.44 and 6,363.49

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Solution

The fourth proportional to 11,142.77, 15,377.44 and 6,363.49 is: 8,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.77 : 15,377.44 = 6,363.49 : x
  2. Step 2: Convert to fraction form
    11,142.77/15,377.44 = 6,363.49/x
  3. Step 3: Cross multiply
    11,142.77x = 15,377.44 × 6,363.49
  4. Step 4: Simplify right side
    11,142.77x = 97,854,201.57
  5. Step 5: Solve for x
    x = 97,854,201.57/11,142.77
  6. Step 6: Final answer
    x = 8,781.86

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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.