Home / 7,628.08-11,391.35-7,545.61

Finding the Fourth Proportional to 7,628.08, 11,391.35 and 7,545.61

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Solution

The fourth proportional to 7,628.08, 11,391.35 and 7,545.61 is: 11,268.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.08 : 11,391.35 = 7,545.61 : x
  2. Step 2: Convert to fraction form
    7,628.08/11,391.35 = 7,545.61/x
  3. Step 3: Cross multiply
    7,628.08x = 11,391.35 × 7,545.61
  4. Step 4: Simplify right side
    7,628.08x = 85,954,684.47
  5. Step 5: Solve for x
    x = 85,954,684.47/7,628.08
  6. Step 6: Final answer
    x = 11,268.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.