Home / 14,540.72-20,072.24-9,831.36

Finding the Fourth Proportional to 14,540.72, 20,072.24 and 9,831.36

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Solution

The fourth proportional to 14,540.72, 20,072.24 and 9,831.36 is: 13,571.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.72 : 20,072.24 = 9,831.36 : x
  2. Step 2: Convert to fraction form
    14,540.72/20,072.24 = 9,831.36/x
  3. Step 3: Cross multiply
    14,540.72x = 20,072.24 × 9,831.36
  4. Step 4: Simplify right side
    14,540.72x = 197,337,417.45
  5. Step 5: Solve for x
    x = 197,337,417.45/14,540.72
  6. Step 6: Final answer
    x = 13,571.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.