Home / 19,173.28-28,799.28-12,608.80

Finding the Fourth Proportional to 19,173.28, 28,799.28 and 12,608.80

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Solution

The fourth proportional to 19,173.28, 28,799.28 and 12,608.80 is: 18,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.28 : 28,799.28 = 12,608.80 : x
  2. Step 2: Convert to fraction form
    19,173.28/28,799.28 = 12,608.80/x
  3. Step 3: Cross multiply
    19,173.28x = 28,799.28 × 12,608.80
  4. Step 4: Simplify right side
    19,173.28x = 363,124,361.66
  5. Step 5: Solve for x
    x = 363,124,361.66/19,173.28
  6. Step 6: Final answer
    x = 18,939.08

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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.