Home / 13,433.50-20,150.76-5,111.96

Finding the Fourth Proportional to 13,433.50, 20,150.76 and 5,111.96

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Solution

The fourth proportional to 13,433.50, 20,150.76 and 5,111.96 is: 7,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.50 : 20,150.76 = 5,111.96 : x
  2. Step 2: Convert to fraction form
    13,433.50/20,150.76 = 5,111.96/x
  3. Step 3: Cross multiply
    13,433.50x = 20,150.76 × 5,111.96
  4. Step 4: Simplify right side
    13,433.50x = 103,009,879.09
  5. Step 5: Solve for x
    x = 103,009,879.09/13,433.50
  6. Step 6: Final answer
    x = 7,668.13

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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.