Home / 10,130.50-15,195.67-3,110.50

Finding the Fourth Proportional to 10,130.50, 15,195.67 and 3,110.50

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Solution

The fourth proportional to 10,130.50, 15,195.67 and 3,110.50 is: 4,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.50 : 15,195.67 = 3,110.50 : x
  2. Step 2: Convert to fraction form
    10,130.50/15,195.67 = 3,110.50/x
  3. Step 3: Cross multiply
    10,130.50x = 15,195.67 × 3,110.50
  4. Step 4: Simplify right side
    10,130.50x = 47,266,131.54
  5. Step 5: Solve for x
    x = 47,266,131.54/10,130.50
  6. Step 6: Final answer
    x = 4,665.73

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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.