Home / 11,840.56-16,339.10-6,804.78

Finding the Fourth Proportional to 11,840.56, 16,339.10 and 6,804.78

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Solution

The fourth proportional to 11,840.56, 16,339.10 and 6,804.78 is: 9,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.56 : 16,339.10 = 6,804.78 : x
  2. Step 2: Convert to fraction form
    11,840.56/16,339.10 = 6,804.78/x
  3. Step 3: Cross multiply
    11,840.56x = 16,339.10 × 6,804.78
  4. Step 4: Simplify right side
    11,840.56x = 111,183,980.90
  5. Step 5: Solve for x
    x = 111,183,980.90/11,840.56
  6. Step 6: Final answer
    x = 9,390.09

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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.