Home / 14,502.75-20,023.46-11,139.57

Finding the Fourth Proportional to 14,502.75, 20,023.46 and 11,139.57

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Solution

The fourth proportional to 14,502.75, 20,023.46 and 11,139.57 is: 15,380.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.75 : 20,023.46 = 11,139.57 : x
  2. Step 2: Convert to fraction form
    14,502.75/20,023.46 = 11,139.57/x
  3. Step 3: Cross multiply
    14,502.75x = 20,023.46 × 11,139.57
  4. Step 4: Simplify right side
    14,502.75x = 223,052,678.61
  5. Step 5: Solve for x
    x = 223,052,678.61/14,502.75
  6. Step 6: Final answer
    x = 15,380.03

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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.