Home / 9,315.09-13,981.44-3,397.71

Finding the Fourth Proportional to 9,315.09, 13,981.44 and 3,397.71

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Solution

The fourth proportional to 9,315.09, 13,981.44 and 3,397.71 is: 5,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.09 : 13,981.44 = 3,397.71 : x
  2. Step 2: Convert to fraction form
    9,315.09/13,981.44 = 3,397.71/x
  3. Step 3: Cross multiply
    9,315.09x = 13,981.44 × 3,397.71
  4. Step 4: Simplify right side
    9,315.09x = 47,504,878.50
  5. Step 5: Solve for x
    x = 47,504,878.50/9,315.09
  6. Step 6: Final answer
    x = 5,099.78

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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.