Home / 12,755.76-19,136.90-7,495.22

Finding the Fourth Proportional to 12,755.76, 19,136.90 and 7,495.22

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Solution

The fourth proportional to 12,755.76, 19,136.90 and 7,495.22 is: 11,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.76 : 19,136.90 = 7,495.22 : x
  2. Step 2: Convert to fraction form
    12,755.76/19,136.90 = 7,495.22/x
  3. Step 3: Cross multiply
    12,755.76x = 19,136.90 × 7,495.22
  4. Step 4: Simplify right side
    12,755.76x = 143,435,142.46
  5. Step 5: Solve for x
    x = 143,435,142.46/12,755.76
  6. Step 6: Final answer
    x = 11,244.74

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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.