Home / 9,109.73-12,569.19-6,078.89

Finding the Fourth Proportional to 9,109.73, 12,569.19 and 6,078.89

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Solution

The fourth proportional to 9,109.73, 12,569.19 and 6,078.89 is: 8,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.73 : 12,569.19 = 6,078.89 : x
  2. Step 2: Convert to fraction form
    9,109.73/12,569.19 = 6,078.89/x
  3. Step 3: Cross multiply
    9,109.73x = 12,569.19 × 6,078.89
  4. Step 4: Simplify right side
    9,109.73x = 76,406,660.55
  5. Step 5: Solve for x
    x = 76,406,660.55/9,109.73
  6. Step 6: Final answer
    x = 8,387.37

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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.