Home / 12,107.45-18,091.07-9,280.82

Finding the Fourth Proportional to 12,107.45, 18,091.07 and 9,280.82

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Solution

The fourth proportional to 12,107.45, 18,091.07 and 9,280.82 is: 13,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.45 : 18,091.07 = 9,280.82 : x
  2. Step 2: Convert to fraction form
    12,107.45/18,091.07 = 9,280.82/x
  3. Step 3: Cross multiply
    12,107.45x = 18,091.07 × 9,280.82
  4. Step 4: Simplify right side
    12,107.45x = 167,899,827.42
  5. Step 5: Solve for x
    x = 167,899,827.42/12,107.45
  6. Step 6: Final answer
    x = 13,867.49

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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.