Home / 13,135.16-19,702.32-5,343.80

Finding the Fourth Proportional to 13,135.16, 19,702.32 and 5,343.80

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Solution

The fourth proportional to 13,135.16, 19,702.32 and 5,343.80 is: 8,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.16 : 19,702.32 = 5,343.80 : x
  2. Step 2: Convert to fraction form
    13,135.16/19,702.32 = 5,343.80/x
  3. Step 3: Cross multiply
    13,135.16x = 19,702.32 × 5,343.80
  4. Step 4: Simplify right side
    13,135.16x = 105,285,257.62
  5. Step 5: Solve for x
    x = 105,285,257.62/13,135.16
  6. Step 6: Final answer
    x = 8,015.53

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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.