Home / 13,614.36-18,787.62-7,645.86

Finding the Fourth Proportional to 13,614.36, 18,787.62 and 7,645.86

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Solution

The fourth proportional to 13,614.36, 18,787.62 and 7,645.86 is: 10,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.36 : 18,787.62 = 7,645.86 : x
  2. Step 2: Convert to fraction form
    13,614.36/18,787.62 = 7,645.86/x
  3. Step 3: Cross multiply
    13,614.36x = 18,787.62 × 7,645.86
  4. Step 4: Simplify right side
    13,614.36x = 143,647,512.25
  5. Step 5: Solve for x
    x = 143,647,512.25/13,614.36
  6. Step 6: Final answer
    x = 10,551.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.