Home / 14,501.76-20,022.07-11,138.56

Finding the Fourth Proportional to 14,501.76, 20,022.07 and 11,138.56

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Solution

The fourth proportional to 14,501.76, 20,022.07 and 11,138.56 is: 15,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.76 : 20,022.07 = 11,138.56 : x
  2. Step 2: Convert to fraction form
    14,501.76/20,022.07 = 11,138.56/x
  3. Step 3: Cross multiply
    14,501.76x = 20,022.07 × 11,138.56
  4. Step 4: Simplify right side
    14,501.76x = 223,016,950.12
  5. Step 5: Solve for x
    x = 223,016,950.12/14,501.76
  6. Step 6: Final answer
    x = 15,378.61

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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.