Home / 7,425.07-11,137.25-1,878.09

Finding the Fourth Proportional to 7,425.07, 11,137.25 and 1,878.09

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Solution

The fourth proportional to 7,425.07, 11,137.25 and 1,878.09 is: 2,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.07 : 11,137.25 = 1,878.09 : x
  2. Step 2: Convert to fraction form
    7,425.07/11,137.25 = 1,878.09/x
  3. Step 3: Cross multiply
    7,425.07x = 11,137.25 × 1,878.09
  4. Step 4: Simplify right side
    7,425.07x = 20,916,710.22
  5. Step 5: Solve for x
    x = 20,916,710.22/7,425.07
  6. Step 6: Final answer
    x = 2,817.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.