Home / 14,834.82-20,472.38-8,120.74

Finding the Fourth Proportional to 14,834.82, 20,472.38 and 8,120.74

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Solution

The fourth proportional to 14,834.82, 20,472.38 and 8,120.74 is: 11,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,834.82 : 20,472.38 = 8,120.74 : x
  2. Step 2: Convert to fraction form
    14,834.82/20,472.38 = 8,120.74/x
  3. Step 3: Cross multiply
    14,834.82x = 20,472.38 × 8,120.74
  4. Step 4: Simplify right side
    14,834.82x = 166,250,875.16
  5. Step 5: Solve for x
    x = 166,250,875.16/14,834.82
  6. Step 6: Final answer
    x = 11,206.80

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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.