Home / 11,790.85-16,271.29-6,687.34

Finding the Fourth Proportional to 11,790.85, 16,271.29 and 6,687.34

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Solution

The fourth proportional to 11,790.85, 16,271.29 and 6,687.34 is: 9,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.85 : 16,271.29 = 6,687.34 : x
  2. Step 2: Convert to fraction form
    11,790.85/16,271.29 = 6,687.34/x
  3. Step 3: Cross multiply
    11,790.85x = 16,271.29 × 6,687.34
  4. Step 4: Simplify right side
    11,790.85x = 108,811,616.11
  5. Step 5: Solve for x
    x = 108,811,616.11/11,790.85
  6. Step 6: Final answer
    x = 9,228.48

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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.