Home / 9,768.30-13,479.71-5,519.85

Finding the Fourth Proportional to 9,768.30, 13,479.71 and 5,519.85

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Solution

The fourth proportional to 9,768.30, 13,479.71 and 5,519.85 is: 7,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768.30 : 13,479.71 = 5,519.85 : x
  2. Step 2: Convert to fraction form
    9,768.30/13,479.71 = 5,519.85/x
  3. Step 3: Cross multiply
    9,768.30x = 13,479.71 × 5,519.85
  4. Step 4: Simplify right side
    9,768.30x = 74,405,977.24
  5. Step 5: Solve for x
    x = 74,405,977.24/9,768.30
  6. Step 6: Final answer
    x = 7,617.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.