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Finding the Fourth Proportional to 18,060, 27,065.40 and 10,166.28

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Solution

The fourth proportional to 18,060, 27,065.40 and 10,166.28 is: 15,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,060 : 27,065.40 = 10,166.28 : x
  2. Step 2: Convert to fraction form
    18,060/27,065.40 = 10,166.28/x
  3. Step 3: Cross multiply
    18,060x = 27,065.40 × 10,166.28
  4. Step 4: Simplify right side
    18,060x = 275,154,434.71
  5. Step 5: Solve for x
    x = 275,154,434.71/18,060
  6. Step 6: Final answer
    x = 15,235.57

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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.