Home / 8,184.36-12,276.24-2,638.14

Finding the Fourth Proportional to 8,184.36, 12,276.24 and 2,638.14

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Solution

The fourth proportional to 8,184.36, 12,276.24 and 2,638.14 is: 3,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.36 : 12,276.24 = 2,638.14 : x
  2. Step 2: Convert to fraction form
    8,184.36/12,276.24 = 2,638.14/x
  3. Step 3: Cross multiply
    8,184.36x = 12,276.24 × 2,638.14
  4. Step 4: Simplify right side
    8,184.36x = 32,386,439.79
  5. Step 5: Solve for x
    x = 32,386,439.79/8,184.36
  6. Step 6: Final answer
    x = 3,957.11

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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.