Home / 18,736.87-25,858.04-10,778.92

Finding the Fourth Proportional to 18,736.87, 25,858.04 and 10,778.92

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Solution

The fourth proportional to 18,736.87, 25,858.04 and 10,778.92 is: 14,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.87 : 25,858.04 = 10,778.92 : x
  2. Step 2: Convert to fraction form
    18,736.87/25,858.04 = 10,778.92/x
  3. Step 3: Cross multiply
    18,736.87x = 25,858.04 × 10,778.92
  4. Step 4: Simplify right side
    18,736.87x = 278,721,771.43
  5. Step 5: Solve for x
    x = 278,721,771.43/18,736.87
  6. Step 6: Final answer
    x = 14,875.58

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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.