Home / 19,191.96-28,734.78-9,811.80

Finding the Fourth Proportional to 19,191.96, 28,734.78 and 9,811.80

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Solution

The fourth proportional to 19,191.96, 28,734.78 and 9,811.80 is: 14,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.96 : 28,734.78 = 9,811.80 : x
  2. Step 2: Convert to fraction form
    19,191.96/28,734.78 = 9,811.80/x
  3. Step 3: Cross multiply
    19,191.96x = 28,734.78 × 9,811.80
  4. Step 4: Simplify right side
    19,191.96x = 281,939,914.40
  5. Step 5: Solve for x
    x = 281,939,914.40/19,191.96
  6. Step 6: Final answer
    x = 14,690.52

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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.