Home / 9,054.94-13,520.46-8,111.80

Finding the Fourth Proportional to 9,054.94, 13,520.46 and 8,111.80

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Solution

The fourth proportional to 9,054.94, 13,520.46 and 8,111.80 is: 12,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,054.94 : 13,520.46 = 8,111.80 : x
  2. Step 2: Convert to fraction form
    9,054.94/13,520.46 = 8,111.80/x
  3. Step 3: Cross multiply
    9,054.94x = 13,520.46 × 8,111.80
  4. Step 4: Simplify right side
    9,054.94x = 109,675,267.43
  5. Step 5: Solve for x
    x = 109,675,267.43/9,054.94
  6. Step 6: Final answer
    x = 12,112.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.