Home / 13,727.05-18,943.32-7,439.43

Finding the Fourth Proportional to 13,727.05, 18,943.32 and 7,439.43

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Solution

The fourth proportional to 13,727.05, 18,943.32 and 7,439.43 is: 10,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.05 : 18,943.32 = 7,439.43 : x
  2. Step 2: Convert to fraction form
    13,727.05/18,943.32 = 7,439.43/x
  3. Step 3: Cross multiply
    13,727.05x = 18,943.32 × 7,439.43
  4. Step 4: Simplify right side
    13,727.05x = 140,927,503.11
  5. Step 5: Solve for x
    x = 140,927,503.11/13,727.05
  6. Step 6: Final answer
    x = 10,266.41

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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.