Home / 11,575.92-15,974.64-6,860.28

Finding the Fourth Proportional to 11,575.92, 15,974.64 and 6,860.28

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Solution

The fourth proportional to 11,575.92, 15,974.64 and 6,860.28 is: 9,467.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,575.92 : 15,974.64 = 6,860.28 : x
  2. Step 2: Convert to fraction form
    11,575.92/15,974.64 = 6,860.28/x
  3. Step 3: Cross multiply
    11,575.92x = 15,974.64 × 6,860.28
  4. Step 4: Simplify right side
    11,575.92x = 109,590,503.30
  5. Step 5: Solve for x
    x = 109,590,503.30/11,575.92
  6. Step 6: Final answer
    x = 9,467.11

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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.