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Finding the Fourth Proportional to 18,061.05, 27,065.07 and 10,178.91

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Solution

The fourth proportional to 18,061.05, 27,065.07 and 10,178.91 is: 15,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.05 : 27,065.07 = 10,178.91 : x
  2. Step 2: Convert to fraction form
    18,061.05/27,065.07 = 10,178.91/x
  3. Step 3: Cross multiply
    18,061.05x = 27,065.07 × 10,178.91
  4. Step 4: Simplify right side
    18,061.05x = 275,492,911.67
  5. Step 5: Solve for x
    x = 275,492,911.67/18,061.05
  6. Step 6: Final answer
    x = 15,253.43

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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.