Home / 15,136.25-22,706.87-5,278.41

Finding the Fourth Proportional to 15,136.25, 22,706.87 and 5,278.41

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Solution

The fourth proportional to 15,136.25, 22,706.87 and 5,278.41 is: 7,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.25 : 22,706.87 = 5,278.41 : x
  2. Step 2: Convert to fraction form
    15,136.25/22,706.87 = 5,278.41/x
  3. Step 3: Cross multiply
    15,136.25x = 22,706.87 × 5,278.41
  4. Step 4: Simplify right side
    15,136.25x = 119,856,143.28
  5. Step 5: Solve for x
    x = 119,856,143.28/15,136.25
  6. Step 6: Final answer
    x = 7,918.49

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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.