Home / 9,119.09-12,594.73-6,129.74

Finding the Fourth Proportional to 9,119.09, 12,594.73 and 6,129.74

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Solution

The fourth proportional to 9,119.09, 12,594.73 and 6,129.74 is: 8,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.09 : 12,594.73 = 6,129.74 : x
  2. Step 2: Convert to fraction form
    9,119.09/12,594.73 = 6,129.74/x
  3. Step 3: Cross multiply
    9,119.09x = 12,594.73 × 6,129.74
  4. Step 4: Simplify right side
    9,119.09x = 77,202,436.43
  5. Step 5: Solve for x
    x = 77,202,436.43/9,119.09
  6. Step 6: Final answer
    x = 8,466.02

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Double scale
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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.