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Finding the Fourth Proportional to 18,789, 25,926.60 and 10,833.84

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Solution

The fourth proportional to 18,789, 25,926.60 and 10,833.84 is: 14,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789 : 25,926.60 = 10,833.84 : x
  2. Step 2: Convert to fraction form
    18,789/25,926.60 = 10,833.84/x
  3. Step 3: Cross multiply
    18,789x = 25,926.60 × 10,833.84
  4. Step 4: Simplify right side
    18,789x = 280,884,636.14
  5. Step 5: Solve for x
    x = 280,884,636.14/18,789
  6. Step 6: Final answer
    x = 14,949.42

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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.