Home / 11,690.22-16,131.85-6,655.67

Finding the Fourth Proportional to 11,690.22, 16,131.85 and 6,655.67

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Solution

The fourth proportional to 11,690.22, 16,131.85 and 6,655.67 is: 9,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.22 : 16,131.85 = 6,655.67 : x
  2. Step 2: Convert to fraction form
    11,690.22/16,131.85 = 6,655.67/x
  3. Step 3: Cross multiply
    11,690.22x = 16,131.85 × 6,655.67
  4. Step 4: Simplify right side
    11,690.22x = 107,368,270.09
  5. Step 5: Solve for x
    x = 107,368,270.09/11,690.22
  6. Step 6: Final answer
    x = 9,184.45

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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.