Home / 12,165.38-16,788.79-6,860.08

Finding the Fourth Proportional to 12,165.38, 16,788.79 and 6,860.08

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Solution

The fourth proportional to 12,165.38, 16,788.79 and 6,860.08 is: 9,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.38 : 16,788.79 = 6,860.08 : x
  2. Step 2: Convert to fraction form
    12,165.38/16,788.79 = 6,860.08/x
  3. Step 3: Cross multiply
    12,165.38x = 16,788.79 × 6,860.08
  4. Step 4: Simplify right side
    12,165.38x = 115,172,472.06
  5. Step 5: Solve for x
    x = 115,172,472.06/12,165.38
  6. Step 6: Final answer
    x = 9,467.23

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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.