Home / 11,480.47-17,220.94-3,689.28

Finding the Fourth Proportional to 11,480.47, 17,220.94 and 3,689.28

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Solution

The fourth proportional to 11,480.47, 17,220.94 and 3,689.28 is: 5,534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.47 : 17,220.94 = 3,689.28 : x
  2. Step 2: Convert to fraction form
    11,480.47/17,220.94 = 3,689.28/x
  3. Step 3: Cross multiply
    11,480.47x = 17,220.94 × 3,689.28
  4. Step 4: Simplify right side
    11,480.47x = 63,532,860.30
  5. Step 5: Solve for x
    x = 63,532,860.30/11,480.47
  6. Step 6: Final answer
    x = 5,534.00

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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.