Home / 11,078.63-15,288.41-6,362.94

Finding the Fourth Proportional to 11,078.63, 15,288.41 and 6,362.94

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Solution

The fourth proportional to 11,078.63, 15,288.41 and 6,362.94 is: 8,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.63 : 15,288.41 = 6,362.94 : x
  2. Step 2: Convert to fraction form
    11,078.63/15,288.41 = 6,362.94/x
  3. Step 3: Cross multiply
    11,078.63x = 15,288.41 × 6,362.94
  4. Step 4: Simplify right side
    11,078.63x = 97,279,235.53
  5. Step 5: Solve for x
    x = 97,279,235.53/11,078.63
  6. Step 6: Final answer
    x = 8,780.80

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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.