Home / 14,662.83-20,228.40-8,691.30

Finding the Fourth Proportional to 14,662.83, 20,228.40 and 8,691.30

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Solution

The fourth proportional to 14,662.83, 20,228.40 and 8,691.30 is: 11,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.83 : 20,228.40 = 8,691.30 : x
  2. Step 2: Convert to fraction form
    14,662.83/20,228.40 = 8,691.30/x
  3. Step 3: Cross multiply
    14,662.83x = 20,228.40 × 8,691.30
  4. Step 4: Simplify right side
    14,662.83x = 175,811,092.92
  5. Step 5: Solve for x
    x = 175,811,092.92/14,662.83
  6. Step 6: Final answer
    x = 11,990.26

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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.