Home / 11,130.50-15,361.89-6,413.96

Finding the Fourth Proportional to 11,130.50, 15,361.89 and 6,413.96

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Solution

The fourth proportional to 11,130.50, 15,361.89 and 6,413.96 is: 8,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.50 : 15,361.89 = 6,413.96 : x
  2. Step 2: Convert to fraction form
    11,130.50/15,361.89 = 6,413.96/x
  3. Step 3: Cross multiply
    11,130.50x = 15,361.89 × 6,413.96
  4. Step 4: Simplify right side
    11,130.50x = 98,530,547.98
  5. Step 5: Solve for x
    x = 98,530,547.98/11,130.50
  6. Step 6: Final answer
    x = 8,852.30

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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.