Home / 18,838.12-28,255.81-7,594.21

Finding the Fourth Proportional to 18,838.12, 28,255.81 and 7,594.21

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Solution

The fourth proportional to 18,838.12, 28,255.81 and 7,594.21 is: 11,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.12 : 28,255.81 = 7,594.21 : x
  2. Step 2: Convert to fraction form
    18,838.12/28,255.81 = 7,594.21/x
  3. Step 3: Cross multiply
    18,838.12x = 28,255.81 × 7,594.21
  4. Step 4: Simplify right side
    18,838.12x = 214,580,413.58
  5. Step 5: Solve for x
    x = 214,580,413.58/18,838.12
  6. Step 6: Final answer
    x = 11,390.76

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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.