Home / 9,618.19-13,279.09-7,375.76

Finding the Fourth Proportional to 9,618.19, 13,279.09 and 7,375.76

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Solution

The fourth proportional to 9,618.19, 13,279.09 and 7,375.76 is: 10,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.19 : 13,279.09 = 7,375.76 : x
  2. Step 2: Convert to fraction form
    9,618.19/13,279.09 = 7,375.76/x
  3. Step 3: Cross multiply
    9,618.19x = 13,279.09 × 7,375.76
  4. Step 4: Simplify right side
    9,618.19x = 97,943,359.65
  5. Step 5: Solve for x
    x = 97,943,359.65/9,618.19
  6. Step 6: Final answer
    x = 10,183.14

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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.