Home / 28,513.06-42,769.61-7,736.56

Finding the Fourth Proportional to 28,513.06, 42,769.61 and 7,736.56

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Solution

The fourth proportional to 28,513.06, 42,769.61 and 7,736.56 is: 11,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.06 : 42,769.61 = 7,736.56 : x
  2. Step 2: Convert to fraction form
    28,513.06/42,769.61 = 7,736.56/x
  3. Step 3: Cross multiply
    28,513.06x = 42,769.61 × 7,736.56
  4. Step 4: Simplify right side
    28,513.06x = 330,889,653.94
  5. Step 5: Solve for x
    x = 330,889,653.94/28,513.06
  6. Step 6: Final answer
    x = 11,604.85

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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.