Home / 11,296.20-15,579.55-7,950.10

Finding the Fourth Proportional to 11,296.20, 15,579.55 and 7,950.10

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Solution

The fourth proportional to 11,296.20, 15,579.55 and 7,950.10 is: 10,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.20 : 15,579.55 = 7,950.10 : x
  2. Step 2: Convert to fraction form
    11,296.20/15,579.55 = 7,950.10/x
  3. Step 3: Cross multiply
    11,296.20x = 15,579.55 × 7,950.10
  4. Step 4: Simplify right side
    11,296.20x = 123,858,980.46
  5. Step 5: Solve for x
    x = 123,858,980.46/11,296.20
  6. Step 6: Final answer
    x = 10,964.66

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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.