Home / 8,214.16-12,320.92-2,742.16

Finding the Fourth Proportional to 8,214.16, 12,320.92 and 2,742.16

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Solution

The fourth proportional to 8,214.16, 12,320.92 and 2,742.16 is: 4,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.16 : 12,320.92 = 2,742.16 : x
  2. Step 2: Convert to fraction form
    8,214.16/12,320.92 = 2,742.16/x
  3. Step 3: Cross multiply
    8,214.16x = 12,320.92 × 2,742.16
  4. Step 4: Simplify right side
    8,214.16x = 33,785,933.99
  5. Step 5: Solve for x
    x = 33,785,933.99/8,214.16
  6. Step 6: Final answer
    x = 4,113.13

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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.