Home / 12,775.23-19,167.39-4,878.33

Finding the Fourth Proportional to 12,775.23, 19,167.39 and 4,878.33

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Solution

The fourth proportional to 12,775.23, 19,167.39 and 4,878.33 is: 7,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.23 : 19,167.39 = 4,878.33 : x
  2. Step 2: Convert to fraction form
    12,775.23/19,167.39 = 4,878.33/x
  3. Step 3: Cross multiply
    12,775.23x = 19,167.39 × 4,878.33
  4. Step 4: Simplify right side
    12,775.23x = 93,504,853.66
  5. Step 5: Solve for x
    x = 93,504,853.66/12,775.23
  6. Step 6: Final answer
    x = 7,319.23

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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.