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Finding the Fourth Proportional to 11,875.99, 16,388.94 and 6,570.90

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Solution

The fourth proportional to 11,875.99, 16,388.94 and 6,570.90 is: 9,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.99 : 16,388.94 = 6,570.90 : x
  2. Step 2: Convert to fraction form
    11,875.99/16,388.94 = 6,570.90/x
  3. Step 3: Cross multiply
    11,875.99x = 16,388.94 × 6,570.90
  4. Step 4: Simplify right side
    11,875.99x = 107,690,085.85
  5. Step 5: Solve for x
    x = 107,690,085.85/11,875.99
  6. Step 6: Final answer
    x = 9,067.88

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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.