Home / 11,790.80-16,271.64-6,485.96

Finding the Fourth Proportional to 11,790.80, 16,271.64 and 6,485.96

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Solution

The fourth proportional to 11,790.80, 16,271.64 and 6,485.96 is: 8,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.80 : 16,271.64 = 6,485.96 : x
  2. Step 2: Convert to fraction form
    11,790.80/16,271.64 = 6,485.96/x
  3. Step 3: Cross multiply
    11,790.80x = 16,271.64 × 6,485.96
  4. Step 4: Simplify right side
    11,790.80x = 105,537,124.82
  5. Step 5: Solve for x
    x = 105,537,124.82/11,790.80
  6. Step 6: Final answer
    x = 8,950.81

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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.