Home / 18,451.74-27,671.16-11,420.94

Finding the Fourth Proportional to 18,451.74, 27,671.16 and 11,420.94

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Solution

The fourth proportional to 18,451.74, 27,671.16 and 11,420.94 is: 17,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.74 : 27,671.16 = 11,420.94 : x
  2. Step 2: Convert to fraction form
    18,451.74/27,671.16 = 11,420.94/x
  3. Step 3: Cross multiply
    18,451.74x = 27,671.16 × 11,420.94
  4. Step 4: Simplify right side
    18,451.74x = 316,030,658.09
  5. Step 5: Solve for x
    x = 316,030,658.09/18,451.74
  6. Step 6: Final answer
    x = 17,127.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.