Home / 11,690.19-16,133.58-6,655.64

Finding the Fourth Proportional to 11,690.19, 16,133.58 and 6,655.64

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Solution

The fourth proportional to 11,690.19, 16,133.58 and 6,655.64 is: 9,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.19 : 16,133.58 = 6,655.64 : x
  2. Step 2: Convert to fraction form
    11,690.19/16,133.58 = 6,655.64/x
  3. Step 3: Cross multiply
    11,690.19x = 16,133.58 × 6,655.64
  4. Step 4: Simplify right side
    11,690.19x = 107,379,219.72
  5. Step 5: Solve for x
    x = 107,379,219.72/11,690.19
  6. Step 6: Final answer
    x = 9,185.41

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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.