Home / 7,920.29-11,872.58-4,411.91

Finding the Fourth Proportional to 7,920.29, 11,872.58 and 4,411.91

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Solution

The fourth proportional to 7,920.29, 11,872.58 and 4,411.91 is: 6,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.29 : 11,872.58 = 4,411.91 : x
  2. Step 2: Convert to fraction form
    7,920.29/11,872.58 = 4,411.91/x
  3. Step 3: Cross multiply
    7,920.29x = 11,872.58 × 4,411.91
  4. Step 4: Simplify right side
    7,920.29x = 52,380,754.43
  5. Step 5: Solve for x
    x = 52,380,754.43/7,920.29
  6. Step 6: Final answer
    x = 6,613.49

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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.