Home / 8,212.48-12,318.70-3,018.36

Finding the Fourth Proportional to 8,212.48, 12,318.70 and 3,018.36

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Solution

The fourth proportional to 8,212.48, 12,318.70 and 3,018.36 is: 4,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.48 : 12,318.70 = 3,018.36 : x
  2. Step 2: Convert to fraction form
    8,212.48/12,318.70 = 3,018.36/x
  3. Step 3: Cross multiply
    8,212.48x = 12,318.70 × 3,018.36
  4. Step 4: Simplify right side
    8,212.48x = 37,182,271.33
  5. Step 5: Solve for x
    x = 37,182,271.33/8,212.48
  6. Step 6: Final answer
    x = 4,527.53

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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.