Home / 13,187.84-18,207.71-11,769.09

Finding the Fourth Proportional to 13,187.84, 18,207.71 and 11,769.09

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Solution

The fourth proportional to 13,187.84, 18,207.71 and 11,769.09 is: 16,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.84 : 18,207.71 = 11,769.09 : x
  2. Step 2: Convert to fraction form
    13,187.84/18,207.71 = 11,769.09/x
  3. Step 3: Cross multiply
    13,187.84x = 18,207.71 × 11,769.09
  4. Step 4: Simplify right side
    13,187.84x = 214,288,118.84
  5. Step 5: Solve for x
    x = 214,288,118.84/13,187.84
  6. Step 6: Final answer
    x = 16,248.92

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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.