Home / 12,977.03-19,327.78-12,167.84

Finding the Fourth Proportional to 12,977.03, 19,327.78 and 12,167.84

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Solution

The fourth proportional to 12,977.03, 19,327.78 and 12,167.84 is: 18,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.03 : 19,327.78 = 12,167.84 : x
  2. Step 2: Convert to fraction form
    12,977.03/19,327.78 = 12,167.84/x
  3. Step 3: Cross multiply
    12,977.03x = 19,327.78 × 12,167.84
  4. Step 4: Simplify right side
    12,977.03x = 235,177,334.60
  5. Step 5: Solve for x
    x = 235,177,334.60/12,977.03
  6. Step 6: Final answer
    x = 18,122.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.