Home / 7,499.20-11,239.68-5,308.56

Finding the Fourth Proportional to 7,499.20, 11,239.68 and 5,308.56

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Solution

The fourth proportional to 7,499.20, 11,239.68 and 5,308.56 is: 7,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.20 : 11,239.68 = 5,308.56 : x
  2. Step 2: Convert to fraction form
    7,499.20/11,239.68 = 5,308.56/x
  3. Step 3: Cross multiply
    7,499.20x = 11,239.68 × 5,308.56
  4. Step 4: Simplify right side
    7,499.20x = 59,666,515.66
  5. Step 5: Solve for x
    x = 59,666,515.66/7,499.20
  6. Step 6: Final answer
    x = 7,956.38

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1.5x scale

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.