Home / 12,413.24-18,616.80-7,416.98

Finding the Fourth Proportional to 12,413.24, 18,616.80 and 7,416.98

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Solution

The fourth proportional to 12,413.24, 18,616.80 and 7,416.98 is: 11,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.24 : 18,616.80 = 7,416.98 : x
  2. Step 2: Convert to fraction form
    12,413.24/18,616.80 = 7,416.98/x
  3. Step 3: Cross multiply
    12,413.24x = 18,616.80 × 7,416.98
  4. Step 4: Simplify right side
    12,413.24x = 138,080,433.26
  5. Step 5: Solve for x
    x = 138,080,433.26/12,413.24
  6. Step 6: Final answer
    x = 11,123.64

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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.