Home / 9,161.49-13,731.71-3,888.70

Finding the Fourth Proportional to 9,161.49, 13,731.71 and 3,888.70

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Solution

The fourth proportional to 9,161.49, 13,731.71 and 3,888.70 is: 5,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.49 : 13,731.71 = 3,888.70 : x
  2. Step 2: Convert to fraction form
    9,161.49/13,731.71 = 3,888.70/x
  3. Step 3: Cross multiply
    9,161.49x = 13,731.71 × 3,888.70
  4. Step 4: Simplify right side
    9,161.49x = 53,398,500.68
  5. Step 5: Solve for x
    x = 53,398,500.68/9,161.49
  6. Step 6: Final answer
    x = 5,828.58

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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.