Home / 18,317.74-27,480.17-7,787.64

Finding the Fourth Proportional to 18,317.74, 27,480.17 and 7,787.64

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Solution

The fourth proportional to 18,317.74, 27,480.17 and 7,787.64 is: 11,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.74 : 27,480.17 = 7,787.64 : x
  2. Step 2: Convert to fraction form
    18,317.74/27,480.17 = 7,787.64/x
  3. Step 3: Cross multiply
    18,317.74x = 27,480.17 × 7,787.64
  4. Step 4: Simplify right side
    18,317.74x = 214,005,553.17
  5. Step 5: Solve for x
    x = 214,005,553.17/18,317.74
  6. Step 6: Final answer
    x = 11,682.97

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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.