Home / 11,639.98-16,064.36-6,861.42

Finding the Fourth Proportional to 11,639.98, 16,064.36 and 6,861.42

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Solution

The fourth proportional to 11,639.98, 16,064.36 and 6,861.42 is: 9,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.98 : 16,064.36 = 6,861.42 : x
  2. Step 2: Convert to fraction form
    11,639.98/16,064.36 = 6,861.42/x
  3. Step 3: Cross multiply
    11,639.98x = 16,064.36 × 6,861.42
  4. Step 4: Simplify right side
    11,639.98x = 110,224,320.99
  5. Step 5: Solve for x
    x = 110,224,320.99/11,639.98
  6. Step 6: Final answer
    x = 9,469.46

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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.