Home / 13,393.36-18,476.94-9,413.20

Finding the Fourth Proportional to 13,393.36, 18,476.94 and 9,413.20

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Solution

The fourth proportional to 13,393.36, 18,476.94 and 9,413.20 is: 12,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.36 : 18,476.94 = 9,413.20 : x
  2. Step 2: Convert to fraction form
    13,393.36/18,476.94 = 9,413.20/x
  3. Step 3: Cross multiply
    13,393.36x = 18,476.94 × 9,413.20
  4. Step 4: Simplify right side
    13,393.36x = 173,927,131.61
  5. Step 5: Solve for x
    x = 173,927,131.61/13,393.36
  6. Step 6: Final answer
    x = 12,986.07

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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.