Home / 8,686.28-13,025.96-3,136.62

Finding the Fourth Proportional to 8,686.28, 13,025.96 and 3,136.62

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Solution

The fourth proportional to 8,686.28, 13,025.96 and 3,136.62 is: 4,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.28 : 13,025.96 = 3,136.62 : x
  2. Step 2: Convert to fraction form
    8,686.28/13,025.96 = 3,136.62/x
  3. Step 3: Cross multiply
    8,686.28x = 13,025.96 × 3,136.62
  4. Step 4: Simplify right side
    8,686.28x = 40,857,486.66
  5. Step 5: Solve for x
    x = 40,857,486.66/8,686.28
  6. Step 6: Final answer
    x = 4,703.68

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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.