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Finding the Fourth Proportional to 18,800.53, 28,198.32 and 8,946.07

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Solution

The fourth proportional to 18,800.53, 28,198.32 and 8,946.07 is: 13,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.53 : 28,198.32 = 8,946.07 : x
  2. Step 2: Convert to fraction form
    18,800.53/28,198.32 = 8,946.07/x
  3. Step 3: Cross multiply
    18,800.53x = 28,198.32 × 8,946.07
  4. Step 4: Simplify right side
    18,800.53x = 252,264,144.60
  5. Step 5: Solve for x
    x = 252,264,144.60/18,800.53
  6. Step 6: Final answer
    x = 13,417.93

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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.