Home / 18,902.34-28,357.56-5,755.77

Finding the Fourth Proportional to 18,902.34, 28,357.56 and 5,755.77

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Solution

The fourth proportional to 18,902.34, 28,357.56 and 5,755.77 is: 8,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.34 : 28,357.56 = 5,755.77 : x
  2. Step 2: Convert to fraction form
    18,902.34/28,357.56 = 5,755.77/x
  3. Step 3: Cross multiply
    18,902.34x = 28,357.56 × 5,755.77
  4. Step 4: Simplify right side
    18,902.34x = 163,219,593.12
  5. Step 5: Solve for x
    x = 163,219,593.12/18,902.34
  6. Step 6: Final answer
    x = 8,634.89

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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.