Home / 11,790.92-16,271.43-6,485.70

Finding the Fourth Proportional to 11,790.92, 16,271.43 and 6,485.70

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Solution

The fourth proportional to 11,790.92, 16,271.43 and 6,485.70 is: 8,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.92 : 16,271.43 = 6,485.70 : x
  2. Step 2: Convert to fraction form
    11,790.92/16,271.43 = 6,485.70/x
  3. Step 3: Cross multiply
    11,790.92x = 16,271.43 × 6,485.70
  4. Step 4: Simplify right side
    11,790.92x = 105,531,549.44
  5. Step 5: Solve for x
    x = 105,531,549.44/11,790.92
  6. Step 6: Final answer
    x = 8,950.24

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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.