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Finding the Fourth Proportional to 18,456.46, 27,684.38 and 4,605.46

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Solution

The fourth proportional to 18,456.46, 27,684.38 and 4,605.46 is: 6,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.46 : 27,684.38 = 4,605.46 : x
  2. Step 2: Convert to fraction form
    18,456.46/27,684.38 = 4,605.46/x
  3. Step 3: Cross multiply
    18,456.46x = 27,684.38 × 4,605.46
  4. Step 4: Simplify right side
    18,456.46x = 127,499,247.02
  5. Step 5: Solve for x
    x = 127,499,247.02/18,456.46
  6. Step 6: Final answer
    x = 6,908.11

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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.