Home / 7,728.88-10,667.36-4,371.68

Finding the Fourth Proportional to 7,728.88, 10,667.36 and 4,371.68

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Solution

The fourth proportional to 7,728.88, 10,667.36 and 4,371.68 is: 6,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.88 : 10,667.36 = 4,371.68 : x
  2. Step 2: Convert to fraction form
    7,728.88/10,667.36 = 4,371.68/x
  3. Step 3: Cross multiply
    7,728.88x = 10,667.36 × 4,371.68
  4. Step 4: Simplify right side
    7,728.88x = 46,634,284.36
  5. Step 5: Solve for x
    x = 46,634,284.36/7,728.88
  6. Step 6: Final answer
    x = 6,033.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.