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Finding the Fourth Proportional to 18,010.42, 27,019.63 and 6,917.11

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Solution

The fourth proportional to 18,010.42, 27,019.63 and 6,917.11 is: 10,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.42 : 27,019.63 = 6,917.11 : x
  2. Step 2: Convert to fraction form
    18,010.42/27,019.63 = 6,917.11/x
  3. Step 3: Cross multiply
    18,010.42x = 27,019.63 × 6,917.11
  4. Step 4: Simplify right side
    18,010.42x = 186,897,803.13
  5. Step 5: Solve for x
    x = 186,897,803.13/18,010.42
  6. Step 6: Final answer
    x = 10,377.20

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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.