Home / 12,719.44-19,084.64-6,880.16

Finding the Fourth Proportional to 12,719.44, 19,084.64 and 6,880.16

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Solution

The fourth proportional to 12,719.44, 19,084.64 and 6,880.16 is: 10,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.44 : 19,084.64 = 6,880.16 : x
  2. Step 2: Convert to fraction form
    12,719.44/19,084.64 = 6,880.16/x
  3. Step 3: Cross multiply
    12,719.44x = 19,084.64 × 6,880.16
  4. Step 4: Simplify right side
    12,719.44x = 131,305,376.74
  5. Step 5: Solve for x
    x = 131,305,376.74/12,719.44
  6. Step 6: Final answer
    x = 10,323.20

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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.