Home / 13,836.28-19,094.64-7,869

Finding the Fourth Proportional to 13,836.28, 19,094.64 and 7,869

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Solution

The fourth proportional to 13,836.28, 19,094.64 and 7,869 is: 10,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.28 : 19,094.64 = 7,869 : x
  2. Step 2: Convert to fraction form
    13,836.28/19,094.64 = 7,869/x
  3. Step 3: Cross multiply
    13,836.28x = 19,094.64 × 7,869
  4. Step 4: Simplify right side
    13,836.28x = 150,255,722.16
  5. Step 5: Solve for x
    x = 150,255,722.16/13,836.28
  6. Step 6: Final answer
    x = 10,859.55

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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.