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Finding the Fourth Proportional to 18,264.52, 27,386.20 and 7,158.21

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Solution

The fourth proportional to 18,264.52, 27,386.20 and 7,158.21 is: 10,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.52 : 27,386.20 = 7,158.21 : x
  2. Step 2: Convert to fraction form
    18,264.52/27,386.20 = 7,158.21/x
  3. Step 3: Cross multiply
    18,264.52x = 27,386.20 × 7,158.21
  4. Step 4: Simplify right side
    18,264.52x = 196,036,170.70
  5. Step 5: Solve for x
    x = 196,036,170.70/18,264.52
  6. Step 6: Final answer
    x = 10,733.17

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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.