Home / 9,278.71-13,899.52-5,578.91

Finding the Fourth Proportional to 9,278.71, 13,899.52 and 5,578.91

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Solution

The fourth proportional to 9,278.71, 13,899.52 and 5,578.91 is: 8,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.71 : 13,899.52 = 5,578.91 : x
  2. Step 2: Convert to fraction form
    9,278.71/13,899.52 = 5,578.91/x
  3. Step 3: Cross multiply
    9,278.71x = 13,899.52 × 5,578.91
  4. Step 4: Simplify right side
    9,278.71x = 77,544,087.68
  5. Step 5: Solve for x
    x = 77,544,087.68/9,278.71
  6. Step 6: Final answer
    x = 8,357.21

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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.