Home / 9,894.13-13,660.58-6,311.09

Finding the Fourth Proportional to 9,894.13, 13,660.58 and 6,311.09

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Solution

The fourth proportional to 9,894.13, 13,660.58 and 6,311.09 is: 8,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,894.13 : 13,660.58 = 6,311.09 : x
  2. Step 2: Convert to fraction form
    9,894.13/13,660.58 = 6,311.09/x
  3. Step 3: Cross multiply
    9,894.13x = 13,660.58 × 6,311.09
  4. Step 4: Simplify right side
    9,894.13x = 86,213,149.83
  5. Step 5: Solve for x
    x = 86,213,149.83/9,894.13
  6. Step 6: Final answer
    x = 8,713.57

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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.