Home / 18,723.28-28,084.74-7,627.36

Finding the Fourth Proportional to 18,723.28, 28,084.74 and 7,627.36

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Solution

The fourth proportional to 18,723.28, 28,084.74 and 7,627.36 is: 11,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.28 : 28,084.74 = 7,627.36 : x
  2. Step 2: Convert to fraction form
    18,723.28/28,084.74 = 7,627.36/x
  3. Step 3: Cross multiply
    18,723.28x = 28,084.74 × 7,627.36
  4. Step 4: Simplify right side
    18,723.28x = 214,212,422.49
  5. Step 5: Solve for x
    x = 214,212,422.49/18,723.28
  6. Step 6: Final answer
    x = 11,440.97

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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.