Home / 13,723.05-18,937.89-7,435.43

Finding the Fourth Proportional to 13,723.05, 18,937.89 and 7,435.43

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Solution

The fourth proportional to 13,723.05, 18,937.89 and 7,435.43 is: 10,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.05 : 18,937.89 = 7,435.43 : x
  2. Step 2: Convert to fraction form
    13,723.05/18,937.89 = 7,435.43/x
  3. Step 3: Cross multiply
    13,723.05x = 18,937.89 × 7,435.43
  4. Step 4: Simplify right side
    13,723.05x = 140,811,355.44
  5. Step 5: Solve for x
    x = 140,811,355.44/13,723.05
  6. Step 6: Final answer
    x = 10,260.94

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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.