Home / 13,787.82-20,692.20-10,099.62

Finding the Fourth Proportional to 13,787.82, 20,692.20 and 10,099.62

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Solution

The fourth proportional to 13,787.82, 20,692.20 and 10,099.62 is: 15,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.82 : 20,692.20 = 10,099.62 : x
  2. Step 2: Convert to fraction form
    13,787.82/20,692.20 = 10,099.62/x
  3. Step 3: Cross multiply
    13,787.82x = 20,692.20 × 10,099.62
  4. Step 4: Simplify right side
    13,787.82x = 208,983,356.96
  5. Step 5: Solve for x
    x = 208,983,356.96/13,787.82
  6. Step 6: Final answer
    x = 15,157.10

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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.