Home / 14,501.94-20,022.33-11,138.75

Finding the Fourth Proportional to 14,501.94, 20,022.33 and 11,138.75

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Solution

The fourth proportional to 14,501.94, 20,022.33 and 11,138.75 is: 15,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.94 : 20,022.33 = 11,138.75 : x
  2. Step 2: Convert to fraction form
    14,501.94/20,022.33 = 11,138.75/x
  3. Step 3: Cross multiply
    14,501.94x = 20,022.33 × 11,138.75
  4. Step 4: Simplify right side
    14,501.94x = 223,023,672.59
  5. Step 5: Solve for x
    x = 223,023,672.59/14,501.94
  6. Step 6: Final answer
    x = 15,378.89

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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.