Home / 9,213.26-13,819.83-2,639.45

Finding the Fourth Proportional to 9,213.26, 13,819.83 and 2,639.45

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Solution

The fourth proportional to 9,213.26, 13,819.83 and 2,639.45 is: 3,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.26 : 13,819.83 = 2,639.45 : x
  2. Step 2: Convert to fraction form
    9,213.26/13,819.83 = 2,639.45/x
  3. Step 3: Cross multiply
    9,213.26x = 13,819.83 × 2,639.45
  4. Step 4: Simplify right side
    9,213.26x = 36,476,681.19
  5. Step 5: Solve for x
    x = 36,476,681.19/9,213.26
  6. Step 6: Final answer
    x = 3,959.15

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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.