Home / 8,309.80-11,467.89-4,774.12

Finding the Fourth Proportional to 8,309.80, 11,467.89 and 4,774.12

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Solution

The fourth proportional to 8,309.80, 11,467.89 and 4,774.12 is: 6,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.80 : 11,467.89 = 4,774.12 : x
  2. Step 2: Convert to fraction form
    8,309.80/11,467.89 = 4,774.12/x
  3. Step 3: Cross multiply
    8,309.80x = 11,467.89 × 4,774.12
  4. Step 4: Simplify right side
    8,309.80x = 54,749,083.01
  5. Step 5: Solve for x
    x = 54,749,083.01/8,309.80
  6. Step 6: Final answer
    x = 6,588.50

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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.