Home / 9,235.27-12,728.19-6,991.77

Finding the Fourth Proportional to 9,235.27, 12,728.19 and 6,991.77

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Solution

The fourth proportional to 9,235.27, 12,728.19 and 6,991.77 is: 9,636.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.27 : 12,728.19 = 6,991.77 : x
  2. Step 2: Convert to fraction form
    9,235.27/12,728.19 = 6,991.77/x
  3. Step 3: Cross multiply
    9,235.27x = 12,728.19 × 6,991.77
  4. Step 4: Simplify right side
    9,235.27x = 88,992,577.00
  5. Step 5: Solve for x
    x = 88,992,577.00/9,235.27
  6. Step 6: Final answer
    x = 9,636.17

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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.