Home / 19,788.78-27,308.14-10,835.85

Finding the Fourth Proportional to 19,788.78, 27,308.14 and 10,835.85

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Solution

The fourth proportional to 19,788.78, 27,308.14 and 10,835.85 is: 14,953.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.78 : 27,308.14 = 10,835.85 : x
  2. Step 2: Convert to fraction form
    19,788.78/27,308.14 = 10,835.85/x
  3. Step 3: Cross multiply
    19,788.78x = 27,308.14 × 10,835.85
  4. Step 4: Simplify right side
    19,788.78x = 295,906,908.82
  5. Step 5: Solve for x
    x = 295,906,908.82/19,788.78
  6. Step 6: Final answer
    x = 14,953.27

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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.