Home / 13,102.70-19,662.26-5,311.53

Finding the Fourth Proportional to 13,102.70, 19,662.26 and 5,311.53

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Solution

The fourth proportional to 13,102.70, 19,662.26 and 5,311.53 is: 7,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.70 : 19,662.26 = 5,311.53 : x
  2. Step 2: Convert to fraction form
    13,102.70/19,662.26 = 5,311.53/x
  3. Step 3: Cross multiply
    13,102.70x = 19,662.26 × 5,311.53
  4. Step 4: Simplify right side
    13,102.70x = 104,436,657.30
  5. Step 5: Solve for x
    x = 104,436,657.30/13,102.70
  6. Step 6: Final answer
    x = 7,970.62

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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.