Home / 18,795.92-28,128.60-11,677.24

Finding the Fourth Proportional to 18,795.92, 28,128.60 and 11,677.24

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Solution

The fourth proportional to 18,795.92, 28,128.60 and 11,677.24 is: 17,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.92 : 28,128.60 = 11,677.24 : x
  2. Step 2: Convert to fraction form
    18,795.92/28,128.60 = 11,677.24/x
  3. Step 3: Cross multiply
    18,795.92x = 28,128.60 × 11,677.24
  4. Step 4: Simplify right side
    18,795.92x = 328,464,413.06
  5. Step 5: Solve for x
    x = 328,464,413.06/18,795.92
  6. Step 6: Final answer
    x = 17,475.30

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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.