Home / 13,808.55-20,692.35-10,142.63

Finding the Fourth Proportional to 13,808.55, 20,692.35 and 10,142.63

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Solution

The fourth proportional to 13,808.55, 20,692.35 and 10,142.63 is: 15,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.55 : 20,692.35 = 10,142.63 : x
  2. Step 2: Convert to fraction form
    13,808.55/20,692.35 = 10,142.63/x
  3. Step 3: Cross multiply
    13,808.55x = 20,692.35 × 10,142.63
  4. Step 4: Simplify right side
    13,808.55x = 209,874,799.17
  5. Step 5: Solve for x
    x = 209,874,799.17/13,808.55
  6. Step 6: Final answer
    x = 15,198.90

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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.