Home / 14,834.79-20,471.88-8,120.28

Finding the Fourth Proportional to 14,834.79, 20,471.88 and 8,120.28

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Solution

The fourth proportional to 14,834.79, 20,471.88 and 8,120.28 is: 11,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,834.79 : 20,471.88 = 8,120.28 : x
  2. Step 2: Convert to fraction form
    14,834.79/20,471.88 = 8,120.28/x
  3. Step 3: Cross multiply
    14,834.79x = 20,471.88 × 8,120.28
  4. Step 4: Simplify right side
    14,834.79x = 166,237,397.73
  5. Step 5: Solve for x
    x = 166,237,397.73/14,834.79
  6. Step 6: Final answer
    x = 11,205.92

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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.