Home / 17,679.64-26,538.78-12,061.48

Finding the Fourth Proportional to 17,679.64, 26,538.78 and 12,061.48

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Solution

The fourth proportional to 17,679.64, 26,538.78 and 12,061.48 is: 18,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.64 : 26,538.78 = 12,061.48 : x
  2. Step 2: Convert to fraction form
    17,679.64/26,538.78 = 12,061.48/x
  3. Step 3: Cross multiply
    17,679.64x = 26,538.78 × 12,061.48
  4. Step 4: Simplify right side
    17,679.64x = 320,096,964.19
  5. Step 5: Solve for x
    x = 320,096,964.19/17,679.64
  6. Step 6: Final answer
    x = 18,105.40

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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.