Home / 18,837.77-28,265.84-7,747.79

Finding the Fourth Proportional to 18,837.77, 28,265.84 and 7,747.79

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Solution

The fourth proportional to 18,837.77, 28,265.84 and 7,747.79 is: 11,625.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.77 : 28,265.84 = 7,747.79 : x
  2. Step 2: Convert to fraction form
    18,837.77/28,265.84 = 7,747.79/x
  3. Step 3: Cross multiply
    18,837.77x = 28,265.84 × 7,747.79
  4. Step 4: Simplify right side
    18,837.77x = 218,997,612.43
  5. Step 5: Solve for x
    x = 218,997,612.43/18,837.77
  6. Step 6: Final answer
    x = 11,625.46

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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.