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Finding the Fourth Proportional to 11,245.56, 15,519.78 and 6,529.74

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Solution

The fourth proportional to 11,245.56, 15,519.78 and 6,529.74 is: 9,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.56 : 15,519.78 = 6,529.74 : x
  2. Step 2: Convert to fraction form
    11,245.56/15,519.78 = 6,529.74/x
  3. Step 3: Cross multiply
    11,245.56x = 15,519.78 × 6,529.74
  4. Step 4: Simplify right side
    11,245.56x = 101,340,128.26
  5. Step 5: Solve for x
    x = 101,340,128.26/11,245.56
  6. Step 6: Final answer
    x = 9,011.57

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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.