Home / 14,386.68-21,571.20-5,611.32

Finding the Fourth Proportional to 14,386.68, 21,571.20 and 5,611.32

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Solution

The fourth proportional to 14,386.68, 21,571.20 and 5,611.32 is: 8,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.68 : 21,571.20 = 5,611.32 : x
  2. Step 2: Convert to fraction form
    14,386.68/21,571.20 = 5,611.32/x
  3. Step 3: Cross multiply
    14,386.68x = 21,571.20 × 5,611.32
  4. Step 4: Simplify right side
    14,386.68x = 121,042,905.98
  5. Step 5: Solve for x
    x = 121,042,905.98/14,386.68
  6. Step 6: Final answer
    x = 8,413.54

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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.