Home / 13,392.27-20,076.12-7,142.94

Finding the Fourth Proportional to 13,392.27, 20,076.12 and 7,142.94

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Solution

The fourth proportional to 13,392.27, 20,076.12 and 7,142.94 is: 10,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.27 : 20,076.12 = 7,142.94 : x
  2. Step 2: Convert to fraction form
    13,392.27/20,076.12 = 7,142.94/x
  3. Step 3: Cross multiply
    13,392.27x = 20,076.12 × 7,142.94
  4. Step 4: Simplify right side
    13,392.27x = 143,402,520.59
  5. Step 5: Solve for x
    x = 143,402,520.59/13,392.27
  6. Step 6: Final answer
    x = 10,707.86

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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.