Home / 8,109.07-12,164.08-2,265.68

Finding the Fourth Proportional to 8,109.07, 12,164.08 and 2,265.68

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Solution

The fourth proportional to 8,109.07, 12,164.08 and 2,265.68 is: 3,398.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.07 : 12,164.08 = 2,265.68 : x
  2. Step 2: Convert to fraction form
    8,109.07/12,164.08 = 2,265.68/x
  3. Step 3: Cross multiply
    8,109.07x = 12,164.08 × 2,265.68
  4. Step 4: Simplify right side
    8,109.07x = 27,559,840.63
  5. Step 5: Solve for x
    x = 27,559,840.63/8,109.07
  6. Step 6: Final answer
    x = 3,398.65

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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.