Home / 8,072.50-11,136.24-5,715.94

Finding the Fourth Proportional to 8,072.50, 11,136.24 and 5,715.94

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Solution

The fourth proportional to 8,072.50, 11,136.24 and 5,715.94 is: 7,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.50 : 11,136.24 = 5,715.94 : x
  2. Step 2: Convert to fraction form
    8,072.50/11,136.24 = 5,715.94/x
  3. Step 3: Cross multiply
    8,072.50x = 11,136.24 × 5,715.94
  4. Step 4: Simplify right side
    8,072.50x = 63,654,079.67
  5. Step 5: Solve for x
    x = 63,654,079.67/8,072.50
  6. Step 6: Final answer
    x = 7,885.30

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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.