Home / 11,121.06-16,681.53-2,913.06

Finding the Fourth Proportional to 11,121.06, 16,681.53 and 2,913.06

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Solution

The fourth proportional to 11,121.06, 16,681.53 and 2,913.06 is: 4,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.06 : 16,681.53 = 2,913.06 : x
  2. Step 2: Convert to fraction form
    11,121.06/16,681.53 = 2,913.06/x
  3. Step 3: Cross multiply
    11,121.06x = 16,681.53 × 2,913.06
  4. Step 4: Simplify right side
    11,121.06x = 48,594,297.78
  5. Step 5: Solve for x
    x = 48,594,297.78/11,121.06
  6. Step 6: Final answer
    x = 4,369.57

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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.