Home / 8,214.90-12,311.92-5,252.19

Finding the Fourth Proportional to 8,214.90, 12,311.92 and 5,252.19

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Solution

The fourth proportional to 8,214.90, 12,311.92 and 5,252.19 is: 7,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.90 : 12,311.92 = 5,252.19 : x
  2. Step 2: Convert to fraction form
    8,214.90/12,311.92 = 5,252.19/x
  3. Step 3: Cross multiply
    8,214.90x = 12,311.92 × 5,252.19
  4. Step 4: Simplify right side
    8,214.90x = 64,664,543.10
  5. Step 5: Solve for x
    x = 64,664,543.10/8,214.90
  6. Step 6: Final answer
    x = 7,871.62

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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.