Home / 18,936.80-26,132.97-10,439.25

Finding the Fourth Proportional to 18,936.80, 26,132.97 and 10,439.25

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Solution

The fourth proportional to 18,936.80, 26,132.97 and 10,439.25 is: 14,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.80 : 26,132.97 = 10,439.25 : x
  2. Step 2: Convert to fraction form
    18,936.80/26,132.97 = 10,439.25/x
  3. Step 3: Cross multiply
    18,936.80x = 26,132.97 × 10,439.25
  4. Step 4: Simplify right side
    18,936.80x = 272,808,695.32
  5. Step 5: Solve for x
    x = 272,808,695.32/18,936.80
  6. Step 6: Final answer
    x = 14,406.27

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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.