Home / 13,796.05-20,698.40-8,871.25

Finding the Fourth Proportional to 13,796.05, 20,698.40 and 8,871.25

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Solution

The fourth proportional to 13,796.05, 20,698.40 and 8,871.25 is: 13,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.05 : 20,698.40 = 8,871.25 : x
  2. Step 2: Convert to fraction form
    13,796.05/20,698.40 = 8,871.25/x
  3. Step 3: Cross multiply
    13,796.05x = 20,698.40 × 8,871.25
  4. Step 4: Simplify right side
    13,796.05x = 183,620,681
  5. Step 5: Solve for x
    x = 183,620,681/13,796.05
  6. Step 6: Final answer
    x = 13,309.66

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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.