Home / 12,724.86-19,087.75-4,405.15

Finding the Fourth Proportional to 12,724.86, 19,087.75 and 4,405.15

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Solution

The fourth proportional to 12,724.86, 19,087.75 and 4,405.15 is: 6,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.86 : 19,087.75 = 4,405.15 : x
  2. Step 2: Convert to fraction form
    12,724.86/19,087.75 = 4,405.15/x
  3. Step 3: Cross multiply
    12,724.86x = 19,087.75 × 4,405.15
  4. Step 4: Simplify right side
    12,724.86x = 84,084,431.28
  5. Step 5: Solve for x
    x = 84,084,431.28/12,724.86
  6. Step 6: Final answer
    x = 6,607.88

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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.