Home / 7,928.77-11,893.67-2,663.57

Finding the Fourth Proportional to 7,928.77, 11,893.67 and 2,663.57

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Solution

The fourth proportional to 7,928.77, 11,893.67 and 2,663.57 is: 3,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.77 : 11,893.67 = 2,663.57 : x
  2. Step 2: Convert to fraction form
    7,928.77/11,893.67 = 2,663.57/x
  3. Step 3: Cross multiply
    7,928.77x = 11,893.67 × 2,663.57
  4. Step 4: Simplify right side
    7,928.77x = 31,679,643.52
  5. Step 5: Solve for x
    x = 31,679,643.52/7,928.77
  6. Step 6: Final answer
    x = 3,995.53

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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.