Home / 8,683.68-13,022.85-3,136.32

Finding the Fourth Proportional to 8,683.68, 13,022.85 and 3,136.32

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Solution

The fourth proportional to 8,683.68, 13,022.85 and 3,136.32 is: 4,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.68 : 13,022.85 = 3,136.32 : x
  2. Step 2: Convert to fraction form
    8,683.68/13,022.85 = 3,136.32/x
  3. Step 3: Cross multiply
    8,683.68x = 13,022.85 × 3,136.32
  4. Step 4: Simplify right side
    8,683.68x = 40,843,824.91
  5. Step 5: Solve for x
    x = 40,843,824.91/8,683.68
  6. Step 6: Final answer
    x = 4,703.52

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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.