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Finding the Fourth Proportional to 11,507.34, 17,249.04 and 7,809.87

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Solution

The fourth proportional to 11,507.34, 17,249.04 and 7,809.87 is: 11,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.34 : 17,249.04 = 7,809.87 : x
  2. Step 2: Convert to fraction form
    11,507.34/17,249.04 = 7,809.87/x
  3. Step 3: Cross multiply
    11,507.34x = 17,249.04 × 7,809.87
  4. Step 4: Simplify right side
    11,507.34x = 134,712,760.02
  5. Step 5: Solve for x
    x = 134,712,760.02/11,507.34
  6. Step 6: Final answer
    x = 11,706.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.