Home / 12,747.78-19,108.00-6,164.91

Finding the Fourth Proportional to 12,747.78, 19,108.00 and 6,164.91

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Solution

The fourth proportional to 12,747.78, 19,108.00 and 6,164.91 is: 9,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.78 : 19,108.00 = 6,164.91 : x
  2. Step 2: Convert to fraction form
    12,747.78/19,108.00 = 6,164.91/x
  3. Step 3: Cross multiply
    12,747.78x = 19,108.00 × 6,164.91
  4. Step 4: Simplify right side
    12,747.78x = 117,799,107.99
  5. Step 5: Solve for x
    x = 117,799,107.99/12,747.78
  6. Step 6: Final answer
    x = 9,240.75

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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.