Home / 10,663.26-15,991.26-3,640.56

Finding the Fourth Proportional to 10,663.26, 15,991.26 and 3,640.56

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Solution

The fourth proportional to 10,663.26, 15,991.26 and 3,640.56 is: 5,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.26 : 15,991.26 = 3,640.56 : x
  2. Step 2: Convert to fraction form
    10,663.26/15,991.26 = 3,640.56/x
  3. Step 3: Cross multiply
    10,663.26x = 15,991.26 × 3,640.56
  4. Step 4: Simplify right side
    10,663.26x = 58,217,141.51
  5. Step 5: Solve for x
    x = 58,217,141.51/10,663.26
  6. Step 6: Final answer
    x = 5,459.60

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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.