Home / 11,717.70-16,170.45-6,412.56

Finding the Fourth Proportional to 11,717.70, 16,170.45 and 6,412.56

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Solution

The fourth proportional to 11,717.70, 16,170.45 and 6,412.56 is: 8,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.70 : 16,170.45 = 6,412.56 : x
  2. Step 2: Convert to fraction form
    11,717.70/16,170.45 = 6,412.56/x
  3. Step 3: Cross multiply
    11,717.70x = 16,170.45 × 6,412.56
  4. Step 4: Simplify right side
    11,717.70x = 103,693,980.85
  5. Step 5: Solve for x
    x = 103,693,980.85/11,717.70
  6. Step 6: Final answer
    x = 8,849.35

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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.