Home / 7,545.07-10,411.71-4,187.72

Finding the Fourth Proportional to 7,545.07, 10,411.71 and 4,187.72

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Solution

The fourth proportional to 7,545.07, 10,411.71 and 4,187.72 is: 5,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.07 : 10,411.71 = 4,187.72 : x
  2. Step 2: Convert to fraction form
    7,545.07/10,411.71 = 4,187.72/x
  3. Step 3: Cross multiply
    7,545.07x = 10,411.71 × 4,187.72
  4. Step 4: Simplify right side
    7,545.07x = 43,601,336.53
  5. Step 5: Solve for x
    x = 43,601,336.53/7,545.07
  6. Step 6: Final answer
    x = 5,778.78

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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.