Home / 12,724.22-19,080.74-5,222.63

Finding the Fourth Proportional to 12,724.22, 19,080.74 and 5,222.63

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Solution

The fourth proportional to 12,724.22, 19,080.74 and 5,222.63 is: 7,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.22 : 19,080.74 = 5,222.63 : x
  2. Step 2: Convert to fraction form
    12,724.22/19,080.74 = 5,222.63/x
  3. Step 3: Cross multiply
    12,724.22x = 19,080.74 × 5,222.63
  4. Step 4: Simplify right side
    12,724.22x = 99,651,523.63
  5. Step 5: Solve for x
    x = 99,651,523.63/12,724.22
  6. Step 6: Final answer
    x = 7,831.64

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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.