Home / 18,520.66-27,777.75-5,374.90

Finding the Fourth Proportional to 18,520.66, 27,777.75 and 5,374.90

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Solution

The fourth proportional to 18,520.66, 27,777.75 and 5,374.90 is: 8,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.66 : 27,777.75 = 5,374.90 : x
  2. Step 2: Convert to fraction form
    18,520.66/27,777.75 = 5,374.90/x
  3. Step 3: Cross multiply
    18,520.66x = 27,777.75 × 5,374.90
  4. Step 4: Simplify right side
    18,520.66x = 149,302,628.48
  5. Step 5: Solve for x
    x = 149,302,628.48/18,520.66
  6. Step 6: Final answer
    x = 8,061.41

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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.