Home / 19,641.75-27,105.40-11,683.80

Finding the Fourth Proportional to 19,641.75, 27,105.40 and 11,683.80

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Solution

The fourth proportional to 19,641.75, 27,105.40 and 11,683.80 is: 16,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.75 : 27,105.40 = 11,683.80 : x
  2. Step 2: Convert to fraction form
    19,641.75/27,105.40 = 11,683.80/x
  3. Step 3: Cross multiply
    19,641.75x = 27,105.40 × 11,683.80
  4. Step 4: Simplify right side
    19,641.75x = 316,694,072.52
  5. Step 5: Solve for x
    x = 316,694,072.52/19,641.75
  6. Step 6: Final answer
    x = 16,123.52

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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.