Home / 11,075.20-15,279.94-7,098.50

Finding the Fourth Proportional to 11,075.20, 15,279.94 and 7,098.50

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Solution

The fourth proportional to 11,075.20, 15,279.94 and 7,098.50 is: 9,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,075.20 : 15,279.94 = 7,098.50 : x
  2. Step 2: Convert to fraction form
    11,075.20/15,279.94 = 7,098.50/x
  3. Step 3: Cross multiply
    11,075.20x = 15,279.94 × 7,098.50
  4. Step 4: Simplify right side
    11,075.20x = 108,464,654.09
  5. Step 5: Solve for x
    x = 108,464,654.09/11,075.20
  6. Step 6: Final answer
    x = 9,793.47

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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.