Home / 8,411.13-12,618.05-2,864.79

Finding the Fourth Proportional to 8,411.13, 12,618.05 and 2,864.79

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Solution

The fourth proportional to 8,411.13, 12,618.05 and 2,864.79 is: 4,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.13 : 12,618.05 = 2,864.79 : x
  2. Step 2: Convert to fraction form
    8,411.13/12,618.05 = 2,864.79/x
  3. Step 3: Cross multiply
    8,411.13x = 12,618.05 × 2,864.79
  4. Step 4: Simplify right side
    8,411.13x = 36,148,049.14
  5. Step 5: Solve for x
    x = 36,148,049.14/8,411.13
  6. Step 6: Final answer
    x = 4,297.64

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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.