Home / 10,299.12-15,455.97-7,379.88

Finding the Fourth Proportional to 10,299.12, 15,455.97 and 7,379.88

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Solution

The fourth proportional to 10,299.12, 15,455.97 and 7,379.88 is: 11,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.12 : 15,455.97 = 7,379.88 : x
  2. Step 2: Convert to fraction form
    10,299.12/15,455.97 = 7,379.88/x
  3. Step 3: Cross multiply
    10,299.12x = 15,455.97 × 7,379.88
  4. Step 4: Simplify right side
    10,299.12x = 114,063,203.88
  5. Step 5: Solve for x
    x = 114,063,203.88/10,299.12
  6. Step 6: Final answer
    x = 11,075.04

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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.