Home / 11,115.89-16,681.08-4,095.98

Finding the Fourth Proportional to 11,115.89, 16,681.08 and 4,095.98

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Solution

The fourth proportional to 11,115.89, 16,681.08 and 4,095.98 is: 6,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.89 : 16,681.08 = 4,095.98 : x
  2. Step 2: Convert to fraction form
    11,115.89/16,681.08 = 4,095.98/x
  3. Step 3: Cross multiply
    11,115.89x = 16,681.08 × 4,095.98
  4. Step 4: Simplify right side
    11,115.89x = 68,325,370.06
  5. Step 5: Solve for x
    x = 68,325,370.06/11,115.89
  6. Step 6: Final answer
    x = 6,146.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.