Home / 13,690.73-20,536.09-5,374.66

Finding the Fourth Proportional to 13,690.73, 20,536.09 and 5,374.66

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Solution

The fourth proportional to 13,690.73, 20,536.09 and 5,374.66 is: 8,061.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.73 : 20,536.09 = 5,374.66 : x
  2. Step 2: Convert to fraction form
    13,690.73/20,536.09 = 5,374.66/x
  3. Step 3: Cross multiply
    13,690.73x = 20,536.09 × 5,374.66
  4. Step 4: Simplify right side
    13,690.73x = 110,374,490.32
  5. Step 5: Solve for x
    x = 110,374,490.32/13,690.73
  6. Step 6: Final answer
    x = 8,061.99

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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.