Home / 13,787.03-20,680.13-8,202.99

Finding the Fourth Proportional to 13,787.03, 20,680.13 and 8,202.99

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Solution

The fourth proportional to 13,787.03, 20,680.13 and 8,202.99 is: 12,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.03 : 20,680.13 = 8,202.99 : x
  2. Step 2: Convert to fraction form
    13,787.03/20,680.13 = 8,202.99/x
  3. Step 3: Cross multiply
    13,787.03x = 20,680.13 × 8,202.99
  4. Step 4: Simplify right side
    13,787.03x = 169,638,858.57
  5. Step 5: Solve for x
    x = 169,638,858.57/13,787.03
  6. Step 6: Final answer
    x = 12,304.24

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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.