Home / 19,778.12-27,292.75-10,823.89

Finding the Fourth Proportional to 19,778.12, 27,292.75 and 10,823.89

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Solution

The fourth proportional to 19,778.12, 27,292.75 and 10,823.89 is: 14,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.12 : 27,292.75 = 10,823.89 : x
  2. Step 2: Convert to fraction form
    19,778.12/27,292.75 = 10,823.89/x
  3. Step 3: Cross multiply
    19,778.12x = 27,292.75 × 10,823.89
  4. Step 4: Simplify right side
    19,778.12x = 295,413,679.68
  5. Step 5: Solve for x
    x = 295,413,679.68/19,778.12
  6. Step 6: Final answer
    x = 14,936.39

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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.