Home / 19,219.64-28,833.35-8,126.31

Finding the Fourth Proportional to 19,219.64, 28,833.35 and 8,126.31

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Solution

The fourth proportional to 19,219.64, 28,833.35 and 8,126.31 is: 12,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.64 : 28,833.35 = 8,126.31 : x
  2. Step 2: Convert to fraction form
    19,219.64/28,833.35 = 8,126.31/x
  3. Step 3: Cross multiply
    19,219.64x = 28,833.35 × 8,126.31
  4. Step 4: Simplify right side
    19,219.64x = 234,308,847.38
  5. Step 5: Solve for x
    x = 234,308,847.38/19,219.64
  6. Step 6: Final answer
    x = 12,191.11

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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.