Home / 11,785.28-16,257.44-7,066.56

Finding the Fourth Proportional to 11,785.28, 16,257.44 and 7,066.56

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Solution

The fourth proportional to 11,785.28, 16,257.44 and 7,066.56 is: 9,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.28 : 16,257.44 = 7,066.56 : x
  2. Step 2: Convert to fraction form
    11,785.28/16,257.44 = 7,066.56/x
  3. Step 3: Cross multiply
    11,785.28x = 16,257.44 × 7,066.56
  4. Step 4: Simplify right side
    11,785.28x = 114,884,175.21
  5. Step 5: Solve for x
    x = 114,884,175.21/11,785.28
  6. Step 6: Final answer
    x = 9,748.11

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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.