Home / 18,730.38-25,836.36-11,171.94

Finding the Fourth Proportional to 18,730.38, 25,836.36 and 11,171.94

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Solution

The fourth proportional to 18,730.38, 25,836.36 and 11,171.94 is: 15,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.38 : 25,836.36 = 11,171.94 : x
  2. Step 2: Convert to fraction form
    18,730.38/25,836.36 = 11,171.94/x
  3. Step 3: Cross multiply
    18,730.38x = 25,836.36 × 11,171.94
  4. Step 4: Simplify right side
    18,730.38x = 288,642,263.74
  5. Step 5: Solve for x
    x = 288,642,263.74/18,730.38
  6. Step 6: Final answer
    x = 15,410.38

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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.