Home / 8,117.91-12,167.63-3,434.99

Finding the Fourth Proportional to 8,117.91, 12,167.63 and 3,434.99

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Solution

The fourth proportional to 8,117.91, 12,167.63 and 3,434.99 is: 5,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.91 : 12,167.63 = 3,434.99 : x
  2. Step 2: Convert to fraction form
    8,117.91/12,167.63 = 3,434.99/x
  3. Step 3: Cross multiply
    8,117.91x = 12,167.63 × 3,434.99
  4. Step 4: Simplify right side
    8,117.91x = 41,795,726.38
  5. Step 5: Solve for x
    x = 41,795,726.38/8,117.91
  6. Step 6: Final answer
    x = 5,148.58

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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.