Home / 19,112.34-28,639.26-8,012.96

Finding the Fourth Proportional to 19,112.34, 28,639.26 and 8,012.96

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Solution

The fourth proportional to 19,112.34, 28,639.26 and 8,012.96 is: 12,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.34 : 28,639.26 = 8,012.96 : x
  2. Step 2: Convert to fraction form
    19,112.34/28,639.26 = 8,012.96/x
  3. Step 3: Cross multiply
    19,112.34x = 28,639.26 × 8,012.96
  4. Step 4: Simplify right side
    19,112.34x = 229,485,244.81
  5. Step 5: Solve for x
    x = 229,485,244.81/19,112.34
  6. Step 6: Final answer
    x = 12,007.18

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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.