Home / 8,285.82-12,428.75-4,130.97

Finding the Fourth Proportional to 8,285.82, 12,428.75 and 4,130.97

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Solution

The fourth proportional to 8,285.82, 12,428.75 and 4,130.97 is: 6,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.82 : 12,428.75 = 4,130.97 : x
  2. Step 2: Convert to fraction form
    8,285.82/12,428.75 = 4,130.97/x
  3. Step 3: Cross multiply
    8,285.82x = 12,428.75 × 4,130.97
  4. Step 4: Simplify right side
    8,285.82x = 51,342,793.39
  5. Step 5: Solve for x
    x = 51,342,793.39/8,285.82
  6. Step 6: Final answer
    x = 6,196.46

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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.