Home / 12,719.88-19,080.66-4,400.70

Finding the Fourth Proportional to 12,719.88, 19,080.66 and 4,400.70

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Solution

The fourth proportional to 12,719.88, 19,080.66 and 4,400.70 is: 6,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.88 : 19,080.66 = 4,400.70 : x
  2. Step 2: Convert to fraction form
    12,719.88/19,080.66 = 4,400.70/x
  3. Step 3: Cross multiply
    12,719.88x = 19,080.66 × 4,400.70
  4. Step 4: Simplify right side
    12,719.88x = 83,968,260.46
  5. Step 5: Solve for x
    x = 83,968,260.46/12,719.88
  6. Step 6: Final answer
    x = 6,601.34

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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.