Home / 12,165.54-16,788.39-6,860.31

Finding the Fourth Proportional to 12,165.54, 16,788.39 and 6,860.31

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Solution

The fourth proportional to 12,165.54, 16,788.39 and 6,860.31 is: 9,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.54 : 16,788.39 = 6,860.31 : x
  2. Step 2: Convert to fraction form
    12,165.54/16,788.39 = 6,860.31/x
  3. Step 3: Cross multiply
    12,165.54x = 16,788.39 × 6,860.31
  4. Step 4: Simplify right side
    12,165.54x = 115,173,559.80
  5. Step 5: Solve for x
    x = 115,173,559.80/12,165.54
  6. Step 6: Final answer
    x = 9,467.20

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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.