Home / 13,619.49-18,792.86-7,650.02

Finding the Fourth Proportional to 13,619.49, 18,792.86 and 7,650.02

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Solution

The fourth proportional to 13,619.49, 18,792.86 and 7,650.02 is: 10,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.49 : 18,792.86 = 7,650.02 : x
  2. Step 2: Convert to fraction form
    13,619.49/18,792.86 = 7,650.02/x
  3. Step 3: Cross multiply
    13,619.49x = 18,792.86 × 7,650.02
  4. Step 4: Simplify right side
    13,619.49x = 143,765,753.77
  5. Step 5: Solve for x
    x = 143,765,753.77/13,619.49
  6. Step 6: Final answer
    x = 10,555.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.