Home / 8,219.76-12,330.81-2,671.32

Finding the Fourth Proportional to 8,219.76, 12,330.81 and 2,671.32

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Solution

The fourth proportional to 8,219.76, 12,330.81 and 2,671.32 is: 4,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.76 : 12,330.81 = 2,671.32 : x
  2. Step 2: Convert to fraction form
    8,219.76/12,330.81 = 2,671.32/x
  3. Step 3: Cross multiply
    8,219.76x = 12,330.81 × 2,671.32
  4. Step 4: Simplify right side
    8,219.76x = 32,939,539.37
  5. Step 5: Solve for x
    x = 32,939,539.37/8,219.76
  6. Step 6: Final answer
    x = 4,007.36

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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.