Home / 8,214.48-12,320.57-2,667.90

Finding the Fourth Proportional to 8,214.48, 12,320.57 and 2,667.90

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Solution

The fourth proportional to 8,214.48, 12,320.57 and 2,667.90 is: 4,001.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.48 : 12,320.57 = 2,667.90 : x
  2. Step 2: Convert to fraction form
    8,214.48/12,320.57 = 2,667.90/x
  3. Step 3: Cross multiply
    8,214.48x = 12,320.57 × 2,667.90
  4. Step 4: Simplify right side
    8,214.48x = 32,870,035.36
  5. Step 5: Solve for x
    x = 32,870,035.36/8,214.48
  6. Step 6: Final answer
    x = 4,001.47

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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.