Home / 17,619.64-26,423.08-5,136.56

Finding the Fourth Proportional to 17,619.64, 26,423.08 and 5,136.56

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Solution

The fourth proportional to 17,619.64, 26,423.08 and 5,136.56 is: 7,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.64 : 26,423.08 = 5,136.56 : x
  2. Step 2: Convert to fraction form
    17,619.64/26,423.08 = 5,136.56/x
  3. Step 3: Cross multiply
    17,619.64x = 26,423.08 × 5,136.56
  4. Step 4: Simplify right side
    17,619.64x = 135,723,735.80
  5. Step 5: Solve for x
    x = 135,723,735.80/17,619.64
  6. Step 6: Final answer
    x = 7,702.98

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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.