Home / 11,480.47-17,220.89-3,160.43

Finding the Fourth Proportional to 11,480.47, 17,220.89 and 3,160.43

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Solution

The fourth proportional to 11,480.47, 17,220.89 and 3,160.43 is: 4,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.47 : 17,220.89 = 3,160.43 : x
  2. Step 2: Convert to fraction form
    11,480.47/17,220.89 = 3,160.43/x
  3. Step 3: Cross multiply
    11,480.47x = 17,220.89 × 3,160.43
  4. Step 4: Simplify right side
    11,480.47x = 54,425,468.34
  5. Step 5: Solve for x
    x = 54,425,468.34/11,480.47
  6. Step 6: Final answer
    x = 4,740.70

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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.