Home / 14,831.12-20,469.24-8,457.72

Finding the Fourth Proportional to 14,831.12, 20,469.24 and 8,457.72

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Solution

The fourth proportional to 14,831.12, 20,469.24 and 8,457.72 is: 11,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.12 : 20,469.24 = 8,457.72 : x
  2. Step 2: Convert to fraction form
    14,831.12/20,469.24 = 8,457.72/x
  3. Step 3: Cross multiply
    14,831.12x = 20,469.24 × 8,457.72
  4. Step 4: Simplify right side
    14,831.12x = 173,123,209.01
  5. Step 5: Solve for x
    x = 173,123,209.01/14,831.12
  6. Step 6: Final answer
    x = 11,672.97

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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.