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Finding the Fourth Proportional to 18,586.08, 27,881.58 and 9,821.34

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Solution

The fourth proportional to 18,586.08, 27,881.58 and 9,821.34 is: 14,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.08 : 27,881.58 = 9,821.34 : x
  2. Step 2: Convert to fraction form
    18,586.08/27,881.58 = 9,821.34/x
  3. Step 3: Cross multiply
    18,586.08x = 27,881.58 × 9,821.34
  4. Step 4: Simplify right side
    18,586.08x = 273,834,476.92
  5. Step 5: Solve for x
    x = 273,834,476.92/18,586.08
  6. Step 6: Final answer
    x = 14,733.31

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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.