Home / 9,911.06-13,686.32-6,380.27

Finding the Fourth Proportional to 9,911.06, 13,686.32 and 6,380.27

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Solution

The fourth proportional to 9,911.06, 13,686.32 and 6,380.27 is: 8,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.06 : 13,686.32 = 6,380.27 : x
  2. Step 2: Convert to fraction form
    9,911.06/13,686.32 = 6,380.27/x
  3. Step 3: Cross multiply
    9,911.06x = 13,686.32 × 6,380.27
  4. Step 4: Simplify right side
    9,911.06x = 87,322,416.91
  5. Step 5: Solve for x
    x = 87,322,416.91/9,911.06
  6. Step 6: Final answer
    x = 8,810.60

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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.