Home / 16,431.18-24,628.68-7,658.88

Finding the Fourth Proportional to 16,431.18, 24,628.68 and 7,658.88

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Solution

The fourth proportional to 16,431.18, 24,628.68 and 7,658.88 is: 11,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,431.18 : 24,628.68 = 7,658.88 : x
  2. Step 2: Convert to fraction form
    16,431.18/24,628.68 = 7,658.88/x
  3. Step 3: Cross multiply
    16,431.18x = 24,628.68 × 7,658.88
  4. Step 4: Simplify right side
    16,431.18x = 188,628,104.68
  5. Step 5: Solve for x
    x = 188,628,104.68/16,431.18
  6. Step 6: Final answer
    x = 11,479.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.