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Finding the Fourth Proportional to 11,101.76, 16,652.69 and 2,781.74

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Solution

The fourth proportional to 11,101.76, 16,652.69 and 2,781.74 is: 4,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.76 : 16,652.69 = 2,781.74 : x
  2. Step 2: Convert to fraction form
    11,101.76/16,652.69 = 2,781.74/x
  3. Step 3: Cross multiply
    11,101.76x = 16,652.69 × 2,781.74
  4. Step 4: Simplify right side
    11,101.76x = 46,323,492.04
  5. Step 5: Solve for x
    x = 46,323,492.04/11,101.76
  6. Step 6: Final answer
    x = 4,172.63

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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.