Home / 13,727.18-18,943.51-7,439.56

Finding the Fourth Proportional to 13,727.18, 18,943.51 and 7,439.56

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Solution

The fourth proportional to 13,727.18, 18,943.51 and 7,439.56 is: 10,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.18 : 18,943.51 = 7,439.56 : x
  2. Step 2: Convert to fraction form
    13,727.18/18,943.51 = 7,439.56/x
  3. Step 3: Cross multiply
    13,727.18x = 18,943.51 × 7,439.56
  4. Step 4: Simplify right side
    13,727.18x = 140,931,379.26
  5. Step 5: Solve for x
    x = 140,931,379.26/13,727.18
  6. Step 6: Final answer
    x = 10,266.59

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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.