Home / 12,265.38-18,399.90-5,692.22

Finding the Fourth Proportional to 12,265.38, 18,399.90 and 5,692.22

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Solution

The fourth proportional to 12,265.38, 18,399.90 and 5,692.22 is: 8,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.38 : 18,399.90 = 5,692.22 : x
  2. Step 2: Convert to fraction form
    12,265.38/18,399.90 = 5,692.22/x
  3. Step 3: Cross multiply
    12,265.38x = 18,399.90 × 5,692.22
  4. Step 4: Simplify right side
    12,265.38x = 104,736,278.78
  5. Step 5: Solve for x
    x = 104,736,278.78/12,265.38
  6. Step 6: Final answer
    x = 8,539.18

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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.