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Finding the Fourth Proportional to 12,709.78, 19,064.80 and 6,046.99

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Solution

The fourth proportional to 12,709.78, 19,064.80 and 6,046.99 is: 9,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.78 : 19,064.80 = 6,046.99 : x
  2. Step 2: Convert to fraction form
    12,709.78/19,064.80 = 6,046.99/x
  3. Step 3: Cross multiply
    12,709.78x = 19,064.80 × 6,046.99
  4. Step 4: Simplify right side
    12,709.78x = 115,284,614.85
  5. Step 5: Solve for x
    x = 115,284,614.85/12,709.78
  6. Step 6: Final answer
    x = 9,070.55

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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.