Home / 13,726.77-18,942.44-7,439.01

Finding the Fourth Proportional to 13,726.77, 18,942.44 and 7,439.01

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Solution

The fourth proportional to 13,726.77, 18,942.44 and 7,439.01 is: 10,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.77 : 18,942.44 = 7,439.01 : x
  2. Step 2: Convert to fraction form
    13,726.77/18,942.44 = 7,439.01/x
  3. Step 3: Cross multiply
    13,726.77x = 18,942.44 × 7,439.01
  4. Step 4: Simplify right side
    13,726.77x = 140,912,963.39
  5. Step 5: Solve for x
    x = 140,912,963.39/13,726.77
  6. Step 6: Final answer
    x = 10,265.56

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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.