Home / 18,665.83-27,998.40-4,625.89

Finding the Fourth Proportional to 18,665.83, 27,998.40 and 4,625.89

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Solution

The fourth proportional to 18,665.83, 27,998.40 and 4,625.89 is: 6,938.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.83 : 27,998.40 = 4,625.89 : x
  2. Step 2: Convert to fraction form
    18,665.83/27,998.40 = 4,625.89/x
  3. Step 3: Cross multiply
    18,665.83x = 27,998.40 × 4,625.89
  4. Step 4: Simplify right side
    18,665.83x = 129,517,518.58
  5. Step 5: Solve for x
    x = 129,517,518.58/18,665.83
  6. Step 6: Final answer
    x = 6,938.75

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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.