Home / 15,103.80-20,845.44-12,582.36

Finding the Fourth Proportional to 15,103.80, 20,845.44 and 12,582.36

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Solution

The fourth proportional to 15,103.80, 20,845.44 and 12,582.36 is: 17,365.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.80 : 20,845.44 = 12,582.36 : x
  2. Step 2: Convert to fraction form
    15,103.80/20,845.44 = 12,582.36/x
  3. Step 3: Cross multiply
    15,103.80x = 20,845.44 × 12,582.36
  4. Step 4: Simplify right side
    15,103.80x = 262,284,830.44
  5. Step 5: Solve for x
    x = 262,284,830.44/15,103.80
  6. Step 6: Final answer
    x = 17,365.49

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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.