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Finding the Fourth Proportional to 18,600.70, 27,887.67 and 8,734.49

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Solution

The fourth proportional to 18,600.70, 27,887.67 and 8,734.49 is: 13,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.70 : 27,887.67 = 8,734.49 : x
  2. Step 2: Convert to fraction form
    18,600.70/27,887.67 = 8,734.49/x
  3. Step 3: Cross multiply
    18,600.70x = 27,887.67 × 8,734.49
  4. Step 4: Simplify right side
    18,600.70x = 243,584,574.74
  5. Step 5: Solve for x
    x = 243,584,574.74/18,600.70
  6. Step 6: Final answer
    x = 13,095.45

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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.