Home / 7,413.30-11,116.35-4,122.90

Finding the Fourth Proportional to 7,413.30, 11,116.35 and 4,122.90

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Solution

The fourth proportional to 7,413.30, 11,116.35 and 4,122.90 is: 6,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.30 : 11,116.35 = 4,122.90 : x
  2. Step 2: Convert to fraction form
    7,413.30/11,116.35 = 4,122.90/x
  3. Step 3: Cross multiply
    7,413.30x = 11,116.35 × 4,122.90
  4. Step 4: Simplify right side
    7,413.30x = 45,831,599.42
  5. Step 5: Solve for x
    x = 45,831,599.42/7,413.30
  6. Step 6: Final answer
    x = 6,182.35

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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.