Home / 13,501.23-20,245.57-4,138.85

Finding the Fourth Proportional to 13,501.23, 20,245.57 and 4,138.85

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Solution

The fourth proportional to 13,501.23, 20,245.57 and 4,138.85 is: 6,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.23 : 20,245.57 = 4,138.85 : x
  2. Step 2: Convert to fraction form
    13,501.23/20,245.57 = 4,138.85/x
  3. Step 3: Cross multiply
    13,501.23x = 20,245.57 × 4,138.85
  4. Step 4: Simplify right side
    13,501.23x = 83,793,265.82
  5. Step 5: Solve for x
    x = 83,793,265.82/13,501.23
  6. Step 6: Final answer
    x = 6,206.34

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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.