Home / 7,869.83-11,804.77-3,189.92

Finding the Fourth Proportional to 7,869.83, 11,804.77 and 3,189.92

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Solution

The fourth proportional to 7,869.83, 11,804.77 and 3,189.92 is: 4,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.83 : 11,804.77 = 3,189.92 : x
  2. Step 2: Convert to fraction form
    7,869.83/11,804.77 = 3,189.92/x
  3. Step 3: Cross multiply
    7,869.83x = 11,804.77 × 3,189.92
  4. Step 4: Simplify right side
    7,869.83x = 37,656,216.88
  5. Step 5: Solve for x
    x = 37,656,216.88/7,869.83
  6. Step 6: Final answer
    x = 4,784.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.