Home / 11,480.86-17,220.67-3,689.06

Finding the Fourth Proportional to 11,480.86, 17,220.67 and 3,689.06

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Solution

The fourth proportional to 11,480.86, 17,220.67 and 3,689.06 is: 5,533.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.86 : 17,220.67 = 3,689.06 : x
  2. Step 2: Convert to fraction form
    11,480.86/17,220.67 = 3,689.06/x
  3. Step 3: Cross multiply
    11,480.86x = 17,220.67 × 3,689.06
  4. Step 4: Simplify right side
    11,480.86x = 63,528,084.87
  5. Step 5: Solve for x
    x = 63,528,084.87/11,480.86
  6. Step 6: Final answer
    x = 5,533.39

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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.