Home / 13,385.04-18,473.93-7,723.43

Finding the Fourth Proportional to 13,385.04, 18,473.93 and 7,723.43

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Solution

The fourth proportional to 13,385.04, 18,473.93 and 7,723.43 is: 10,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.04 : 18,473.93 = 7,723.43 : x
  2. Step 2: Convert to fraction form
    13,385.04/18,473.93 = 7,723.43/x
  3. Step 3: Cross multiply
    13,385.04x = 18,473.93 × 7,723.43
  4. Step 4: Simplify right side
    13,385.04x = 142,682,105.18
  5. Step 5: Solve for x
    x = 142,682,105.18/13,385.04
  6. Step 6: Final answer
    x = 10,659.82

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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.