Home / 13,765.69-18,995.03-8,099.19

Finding the Fourth Proportional to 13,765.69, 18,995.03 and 8,099.19

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Solution

The fourth proportional to 13,765.69, 18,995.03 and 8,099.19 is: 11,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.69 : 18,995.03 = 8,099.19 : x
  2. Step 2: Convert to fraction form
    13,765.69/18,995.03 = 8,099.19/x
  3. Step 3: Cross multiply
    13,765.69x = 18,995.03 × 8,099.19
  4. Step 4: Simplify right side
    13,765.69x = 153,844,262.05
  5. Step 5: Solve for x
    x = 153,844,262.05/13,765.69
  6. Step 6: Final answer
    x = 11,175.92

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1.5x scale

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.