Home / 7,629.87-11,428.47-5,760.39

Finding the Fourth Proportional to 7,629.87, 11,428.47 and 5,760.39

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Solution

The fourth proportional to 7,629.87, 11,428.47 and 5,760.39 is: 8,628.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.87 : 11,428.47 = 5,760.39 : x
  2. Step 2: Convert to fraction form
    7,629.87/11,428.47 = 5,760.39/x
  3. Step 3: Cross multiply
    7,629.87x = 11,428.47 × 5,760.39
  4. Step 4: Simplify right side
    7,629.87x = 65,832,444.30
  5. Step 5: Solve for x
    x = 65,832,444.30/7,629.87
  6. Step 6: Final answer
    x = 8,628.25

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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.