Home / 13,575.95-18,734.77-8,270.76

Finding the Fourth Proportional to 13,575.95, 18,734.77 and 8,270.76

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Solution

The fourth proportional to 13,575.95, 18,734.77 and 8,270.76 is: 11,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.95 : 18,734.77 = 8,270.76 : x
  2. Step 2: Convert to fraction form
    13,575.95/18,734.77 = 8,270.76/x
  3. Step 3: Cross multiply
    13,575.95x = 18,734.77 × 8,270.76
  4. Step 4: Simplify right side
    13,575.95x = 154,950,765.65
  5. Step 5: Solve for x
    x = 154,950,765.65/13,575.95
  6. Step 6: Final answer
    x = 11,413.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.