Home / 12,827.80-19,241.70-11,291.80

Finding the Fourth Proportional to 12,827.80, 19,241.70 and 11,291.80

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Solution

The fourth proportional to 12,827.80, 19,241.70 and 11,291.80 is: 16,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.80 : 19,241.70 = 11,291.80 : x
  2. Step 2: Convert to fraction form
    12,827.80/19,241.70 = 11,291.80/x
  3. Step 3: Cross multiply
    12,827.80x = 19,241.70 × 11,291.80
  4. Step 4: Simplify right side
    12,827.80x = 217,273,428.06
  5. Step 5: Solve for x
    x = 217,273,428.06/12,827.80
  6. Step 6: Final answer
    x = 16,937.70

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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.