Home / 16,455.91-22,709.05-8,902.21

Finding the Fourth Proportional to 16,455.91, 22,709.05 and 8,902.21

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Solution

The fourth proportional to 16,455.91, 22,709.05 and 8,902.21 is: 12,284.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.91 : 22,709.05 = 8,902.21 : x
  2. Step 2: Convert to fraction form
    16,455.91/22,709.05 = 8,902.21/x
  3. Step 3: Cross multiply
    16,455.91x = 22,709.05 × 8,902.21
  4. Step 4: Simplify right side
    16,455.91x = 202,160,732.00
  5. Step 5: Solve for x
    x = 202,160,732.00/16,455.91
  6. Step 6: Final answer
    x = 12,284.99

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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.