Home / 13,742.29-20,613.03-11,887.93

Finding the Fourth Proportional to 13,742.29, 20,613.03 and 11,887.93

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Solution

The fourth proportional to 13,742.29, 20,613.03 and 11,887.93 is: 17,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.29 : 20,613.03 = 11,887.93 : x
  2. Step 2: Convert to fraction form
    13,742.29/20,613.03 = 11,887.93/x
  3. Step 3: Cross multiply
    13,742.29x = 20,613.03 × 11,887.93
  4. Step 4: Simplify right side
    13,742.29x = 245,046,257.73
  5. Step 5: Solve for x
    x = 245,046,257.73/13,742.29
  6. Step 6: Final answer
    x = 17,831.54

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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.