Home / 13,798.85-20,692.05-3,935.79

Finding the Fourth Proportional to 13,798.85, 20,692.05 and 3,935.79

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Solution

The fourth proportional to 13,798.85, 20,692.05 and 3,935.79 is: 5,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.85 : 20,692.05 = 3,935.79 : x
  2. Step 2: Convert to fraction form
    13,798.85/20,692.05 = 3,935.79/x
  3. Step 3: Cross multiply
    13,798.85x = 20,692.05 × 3,935.79
  4. Step 4: Simplify right side
    13,798.85x = 81,439,563.47
  5. Step 5: Solve for x
    x = 81,439,563.47/13,798.85
  6. Step 6: Final answer
    x = 5,901.91

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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.