Home / 13,923.42-20,885.27-11,146.47

Finding the Fourth Proportional to 13,923.42, 20,885.27 and 11,146.47

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Solution

The fourth proportional to 13,923.42, 20,885.27 and 11,146.47 is: 16,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.42 : 20,885.27 = 11,146.47 : x
  2. Step 2: Convert to fraction form
    13,923.42/20,885.27 = 11,146.47/x
  3. Step 3: Cross multiply
    13,923.42x = 20,885.27 × 11,146.47
  4. Step 4: Simplify right side
    13,923.42x = 232,797,035.50
  5. Step 5: Solve for x
    x = 232,797,035.50/13,923.42
  6. Step 6: Final answer
    x = 16,719.82

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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.