Home / 12,789.44-17,658.24-9,800

Finding the Fourth Proportional to 12,789.44, 17,658.24 and 9,800

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Solution

The fourth proportional to 12,789.44, 17,658.24 and 9,800 is: 13,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.44 : 17,658.24 = 9,800 : x
  2. Step 2: Convert to fraction form
    12,789.44/17,658.24 = 9,800/x
  3. Step 3: Cross multiply
    12,789.44x = 17,658.24 × 9,800
  4. Step 4: Simplify right side
    12,789.44x = 173,050,752.00
  5. Step 5: Solve for x
    x = 173,050,752.00/12,789.44
  6. Step 6: Final answer
    x = 13,530.75

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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.