Home / 13,483.30-20,221.35-4,123.30

Finding the Fourth Proportional to 13,483.30, 20,221.35 and 4,123.30

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Solution

The fourth proportional to 13,483.30, 20,221.35 and 4,123.30 is: 6,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.30 : 20,221.35 = 4,123.30 : x
  2. Step 2: Convert to fraction form
    13,483.30/20,221.35 = 4,123.30/x
  3. Step 3: Cross multiply
    13,483.30x = 20,221.35 × 4,123.30
  4. Step 4: Simplify right side
    13,483.30x = 83,378,692.46
  5. Step 5: Solve for x
    x = 83,378,692.46/13,483.30
  6. Step 6: Final answer
    x = 6,183.85

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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.