Home / 8,009.44-12,018.64-2,818.40

Finding the Fourth Proportional to 8,009.44, 12,018.64 and 2,818.40

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Solution

The fourth proportional to 8,009.44, 12,018.64 and 2,818.40 is: 4,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.44 : 12,018.64 = 2,818.40 : x
  2. Step 2: Convert to fraction form
    8,009.44/12,018.64 = 2,818.40/x
  3. Step 3: Cross multiply
    8,009.44x = 12,018.64 × 2,818.40
  4. Step 4: Simplify right side
    8,009.44x = 33,873,334.98
  5. Step 5: Solve for x
    x = 33,873,334.98/8,009.44
  6. Step 6: Final answer
    x = 4,229.18

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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.