Home / 12,136.44-18,204.78-5,117.64

Finding the Fourth Proportional to 12,136.44, 18,204.78 and 5,117.64

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Solution

The fourth proportional to 12,136.44, 18,204.78 and 5,117.64 is: 7,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.44 : 18,204.78 = 5,117.64 : x
  2. Step 2: Convert to fraction form
    12,136.44/18,204.78 = 5,117.64/x
  3. Step 3: Cross multiply
    12,136.44x = 18,204.78 × 5,117.64
  4. Step 4: Simplify right side
    12,136.44x = 93,165,510.32
  5. Step 5: Solve for x
    x = 93,165,510.32/12,136.44
  6. Step 6: Final answer
    x = 7,676.51

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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.