Home / 15,766.80-23,650.20-8,768.40

Finding the Fourth Proportional to 15,766.80, 23,650.20 and 8,768.40

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Solution

The fourth proportional to 15,766.80, 23,650.20 and 8,768.40 is: 13,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.80 : 23,650.20 = 8,768.40 : x
  2. Step 2: Convert to fraction form
    15,766.80/23,650.20 = 8,768.40/x
  3. Step 3: Cross multiply
    15,766.80x = 23,650.20 × 8,768.40
  4. Step 4: Simplify right side
    15,766.80x = 207,374,413.68
  5. Step 5: Solve for x
    x = 207,374,413.68/15,766.80
  6. Step 6: Final answer
    x = 13,152.60

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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.