Home / 13,727.09-18,943.50-7,439.47

Finding the Fourth Proportional to 13,727.09, 18,943.50 and 7,439.47

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Solution

The fourth proportional to 13,727.09, 18,943.50 and 7,439.47 is: 10,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.09 : 18,943.50 = 7,439.47 : x
  2. Step 2: Convert to fraction form
    13,727.09/18,943.50 = 7,439.47/x
  3. Step 3: Cross multiply
    13,727.09x = 18,943.50 × 7,439.47
  4. Step 4: Simplify right side
    13,727.09x = 140,929,604.16
  5. Step 5: Solve for x
    x = 140,929,604.16/13,727.09
  6. Step 6: Final answer
    x = 10,266.53

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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.