Home / 12,880.14-19,321.83-4,558.20

Finding the Fourth Proportional to 12,880.14, 19,321.83 and 4,558.20

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Solution

The fourth proportional to 12,880.14, 19,321.83 and 4,558.20 is: 6,837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.14 : 19,321.83 = 4,558.20 : x
  2. Step 2: Convert to fraction form
    12,880.14/19,321.83 = 4,558.20/x
  3. Step 3: Cross multiply
    12,880.14x = 19,321.83 × 4,558.20
  4. Step 4: Simplify right side
    12,880.14x = 88,072,765.51
  5. Step 5: Solve for x
    x = 88,072,765.51/12,880.14
  6. Step 6: Final answer
    x = 6,837.87

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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.