Home / 8,031.81-12,046.36-2,188.43

Finding the Fourth Proportional to 8,031.81, 12,046.36 and 2,188.43

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Solution

The fourth proportional to 8,031.81, 12,046.36 and 2,188.43 is: 3,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.81 : 12,046.36 = 2,188.43 : x
  2. Step 2: Convert to fraction form
    8,031.81/12,046.36 = 2,188.43/x
  3. Step 3: Cross multiply
    8,031.81x = 12,046.36 × 2,188.43
  4. Step 4: Simplify right side
    8,031.81x = 26,362,615.61
  5. Step 5: Solve for x
    x = 26,362,615.61/8,031.81
  6. Step 6: Final answer
    x = 3,282.28

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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.