Home / 7,750.99-11,635.94-5,120.74

Finding the Fourth Proportional to 7,750.99, 11,635.94 and 5,120.74

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Solution

The fourth proportional to 7,750.99, 11,635.94 and 5,120.74 is: 7,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.99 : 11,635.94 = 5,120.74 : x
  2. Step 2: Convert to fraction form
    7,750.99/11,635.94 = 5,120.74/x
  3. Step 3: Cross multiply
    7,750.99x = 11,635.94 × 5,120.74
  4. Step 4: Simplify right side
    7,750.99x = 59,584,623.40
  5. Step 5: Solve for x
    x = 59,584,623.40/7,750.99
  6. Step 6: Final answer
    x = 7,687.36

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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.