Home / 14,981.75-20,626.23-11,789.42

Finding the Fourth Proportional to 14,981.75, 20,626.23 and 11,789.42

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Solution

The fourth proportional to 14,981.75, 20,626.23 and 11,789.42 is: 16,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.75 : 20,626.23 = 11,789.42 : x
  2. Step 2: Convert to fraction form
    14,981.75/20,626.23 = 11,789.42/x
  3. Step 3: Cross multiply
    14,981.75x = 20,626.23 × 11,789.42
  4. Step 4: Simplify right side
    14,981.75x = 243,171,288.49
  5. Step 5: Solve for x
    x = 243,171,288.49/14,981.75
  6. Step 6: Final answer
    x = 16,231.17

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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.