Home / 8,488.11-12,721.68-6,156.12

Finding the Fourth Proportional to 8,488.11, 12,721.68 and 6,156.12

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Solution

The fourth proportional to 8,488.11, 12,721.68 and 6,156.12 is: 9,226.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.11 : 12,721.68 = 6,156.12 : x
  2. Step 2: Convert to fraction form
    8,488.11/12,721.68 = 6,156.12/x
  3. Step 3: Cross multiply
    8,488.11x = 12,721.68 × 6,156.12
  4. Step 4: Simplify right side
    8,488.11x = 78,316,188.68
  5. Step 5: Solve for x
    x = 78,316,188.68/8,488.11
  6. Step 6: Final answer
    x = 9,226.58

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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.