Home / 19,278.68-28,922.40-6,131.84

Finding the Fourth Proportional to 19,278.68, 28,922.40 and 6,131.84

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Solution

The fourth proportional to 19,278.68, 28,922.40 and 6,131.84 is: 9,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.68 : 28,922.40 = 6,131.84 : x
  2. Step 2: Convert to fraction form
    19,278.68/28,922.40 = 6,131.84/x
  3. Step 3: Cross multiply
    19,278.68x = 28,922.40 × 6,131.84
  4. Step 4: Simplify right side
    19,278.68x = 177,347,529.22
  5. Step 5: Solve for x
    x = 177,347,529.22/19,278.68
  6. Step 6: Final answer
    x = 9,199.15

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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.