Home / 12,382.26-17,088.70-7,076.05

Finding the Fourth Proportional to 12,382.26, 17,088.70 and 7,076.05

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Solution

The fourth proportional to 12,382.26, 17,088.70 and 7,076.05 is: 9,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.26 : 17,088.70 = 7,076.05 : x
  2. Step 2: Convert to fraction form
    12,382.26/17,088.70 = 7,076.05/x
  3. Step 3: Cross multiply
    12,382.26x = 17,088.70 × 7,076.05
  4. Step 4: Simplify right side
    12,382.26x = 120,920,435.22
  5. Step 5: Solve for x
    x = 120,920,435.22/12,382.26
  6. Step 6: Final answer
    x = 9,765.62

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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.