Home / 13,755.82-20,633.73-4,990.74

Finding the Fourth Proportional to 13,755.82, 20,633.73 and 4,990.74

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Solution

The fourth proportional to 13,755.82, 20,633.73 and 4,990.74 is: 7,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.82 : 20,633.73 = 4,990.74 : x
  2. Step 2: Convert to fraction form
    13,755.82/20,633.73 = 4,990.74/x
  3. Step 3: Cross multiply
    13,755.82x = 20,633.73 × 4,990.74
  4. Step 4: Simplify right side
    13,755.82x = 102,977,581.66
  5. Step 5: Solve for x
    x = 102,977,581.66/13,755.82
  6. Step 6: Final answer
    x = 7,486.11

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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.