Home / 12,799.40-19,201.71-7,255.22

Finding the Fourth Proportional to 12,799.40, 19,201.71 and 7,255.22

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Solution

The fourth proportional to 12,799.40, 19,201.71 and 7,255.22 is: 10,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.40 : 19,201.71 = 7,255.22 : x
  2. Step 2: Convert to fraction form
    12,799.40/19,201.71 = 7,255.22/x
  3. Step 3: Cross multiply
    12,799.40x = 19,201.71 × 7,255.22
  4. Step 4: Simplify right side
    12,799.40x = 139,312,630.43
  5. Step 5: Solve for x
    x = 139,312,630.43/12,799.40
  6. Step 6: Final answer
    x = 10,884.31

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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.