Home / 10,640.48-15,969.04-7,376.56

Finding the Fourth Proportional to 10,640.48, 15,969.04 and 7,376.56

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Solution

The fourth proportional to 10,640.48, 15,969.04 and 7,376.56 is: 11,070.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.48 : 15,969.04 = 7,376.56 : x
  2. Step 2: Convert to fraction form
    10,640.48/15,969.04 = 7,376.56/x
  3. Step 3: Cross multiply
    10,640.48x = 15,969.04 × 7,376.56
  4. Step 4: Simplify right side
    10,640.48x = 117,796,581.70
  5. Step 5: Solve for x
    x = 117,796,581.70/10,640.48
  6. Step 6: Final answer
    x = 11,070.61

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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.