Home / 13,536.36-20,151.81-13,351.68

Finding the Fourth Proportional to 13,536.36, 20,151.81 and 13,351.68

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Solution

The fourth proportional to 13,536.36, 20,151.81 and 13,351.68 is: 19,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.36 : 20,151.81 = 13,351.68 : x
  2. Step 2: Convert to fraction form
    13,536.36/20,151.81 = 13,351.68/x
  3. Step 3: Cross multiply
    13,536.36x = 20,151.81 × 13,351.68
  4. Step 4: Simplify right side
    13,536.36x = 269,060,518.54
  5. Step 5: Solve for x
    x = 269,060,518.54/13,536.36
  6. Step 6: Final answer
    x = 19,876.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.