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Finding the Fourth Proportional to 18,883.34, 28,325 and 8,992.63

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Solution

The fourth proportional to 18,883.34, 28,325 and 8,992.63 is: 13,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.34 : 28,325 = 8,992.63 : x
  2. Step 2: Convert to fraction form
    18,883.34/28,325 = 8,992.63/x
  3. Step 3: Cross multiply
    18,883.34x = 28,325 × 8,992.63
  4. Step 4: Simplify right side
    18,883.34x = 254,716,244.75
  5. Step 5: Solve for x
    x = 254,716,244.75/18,883.34
  6. Step 6: Final answer
    x = 13,488.94

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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.