Home / 9,155.61-13,727.91-2,912.94

Finding the Fourth Proportional to 9,155.61, 13,727.91 and 2,912.94

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Solution

The fourth proportional to 9,155.61, 13,727.91 and 2,912.94 is: 4,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.61 : 13,727.91 = 2,912.94 : x
  2. Step 2: Convert to fraction form
    9,155.61/13,727.91 = 2,912.94/x
  3. Step 3: Cross multiply
    9,155.61x = 13,727.91 × 2,912.94
  4. Step 4: Simplify right side
    9,155.61x = 39,988,578.16
  5. Step 5: Solve for x
    x = 39,988,578.16/9,155.61
  6. Step 6: Final answer
    x = 4,367.66

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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.