Home / 12,136.62-18,212.01-5,116.20

Finding the Fourth Proportional to 12,136.62, 18,212.01 and 5,116.20

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Solution

The fourth proportional to 12,136.62, 18,212.01 and 5,116.20 is: 7,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.62 : 18,212.01 = 5,116.20 : x
  2. Step 2: Convert to fraction form
    12,136.62/18,212.01 = 5,116.20/x
  3. Step 3: Cross multiply
    12,136.62x = 18,212.01 × 5,116.20
  4. Step 4: Simplify right side
    12,136.62x = 93,176,334.67
  5. Step 5: Solve for x
    x = 93,176,334.67/12,136.62
  6. Step 6: Final answer
    x = 7,677.29

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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.