Home / 13,413.21-18,511.25-7,446.03

Finding the Fourth Proportional to 13,413.21, 18,511.25 and 7,446.03

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Solution

The fourth proportional to 13,413.21, 18,511.25 and 7,446.03 is: 10,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.21 : 18,511.25 = 7,446.03 : x
  2. Step 2: Convert to fraction form
    13,413.21/18,511.25 = 7,446.03/x
  3. Step 3: Cross multiply
    13,413.21x = 18,511.25 × 7,446.03
  4. Step 4: Simplify right side
    13,413.21x = 137,835,285.61
  5. Step 5: Solve for x
    x = 137,835,285.61/13,413.21
  6. Step 6: Final answer
    x = 10,276.08

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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.