Home / 15,136.36-20,884.76-9,167.92

Finding the Fourth Proportional to 15,136.36, 20,884.76 and 9,167.92

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Solution

The fourth proportional to 15,136.36, 20,884.76 and 9,167.92 is: 12,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.36 : 20,884.76 = 9,167.92 : x
  2. Step 2: Convert to fraction form
    15,136.36/20,884.76 = 9,167.92/x
  3. Step 3: Cross multiply
    15,136.36x = 20,884.76 × 9,167.92
  4. Step 4: Simplify right side
    15,136.36x = 191,469,808.90
  5. Step 5: Solve for x
    x = 191,469,808.90/15,136.36
  6. Step 6: Final answer
    x = 12,649.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.