Home / 19,268.69-28,899.68-6,785.78

Finding the Fourth Proportional to 19,268.69, 28,899.68 and 6,785.78

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Solution

The fourth proportional to 19,268.69, 28,899.68 and 6,785.78 is: 10,177.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.69 : 28,899.68 = 6,785.78 : x
  2. Step 2: Convert to fraction form
    19,268.69/28,899.68 = 6,785.78/x
  3. Step 3: Cross multiply
    19,268.69x = 28,899.68 × 6,785.78
  4. Step 4: Simplify right side
    19,268.69x = 196,106,870.55
  5. Step 5: Solve for x
    x = 196,106,870.55/19,268.69
  6. Step 6: Final answer
    x = 10,177.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.