Home / 11,995.96-16,555.25-6,690.77

Finding the Fourth Proportional to 11,995.96, 16,555.25 and 6,690.77

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Solution

The fourth proportional to 11,995.96, 16,555.25 and 6,690.77 is: 9,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.96 : 16,555.25 = 6,690.77 : x
  2. Step 2: Convert to fraction form
    11,995.96/16,555.25 = 6,690.77/x
  3. Step 3: Cross multiply
    11,995.96x = 16,555.25 × 6,690.77
  4. Step 4: Simplify right side
    11,995.96x = 110,767,370.04
  5. Step 5: Solve for x
    x = 110,767,370.04/11,995.96
  6. Step 6: Final answer
    x = 9,233.72

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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.