Home / 11,563.64-15,956.11-6,781.77

Finding the Fourth Proportional to 11,563.64, 15,956.11 and 6,781.77

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Solution

The fourth proportional to 11,563.64, 15,956.11 and 6,781.77 is: 9,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,563.64 : 15,956.11 = 6,781.77 : x
  2. Step 2: Convert to fraction form
    11,563.64/15,956.11 = 6,781.77/x
  3. Step 3: Cross multiply
    11,563.64x = 15,956.11 × 6,781.77
  4. Step 4: Simplify right side
    11,563.64x = 108,210,651.16
  5. Step 5: Solve for x
    x = 108,210,651.16/11,563.64
  6. Step 6: Final answer
    x = 9,357.84

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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.