Home / 11,124.74-16,681.52-4,099.80

Finding the Fourth Proportional to 11,124.74, 16,681.52 and 4,099.80

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Solution

The fourth proportional to 11,124.74, 16,681.52 and 4,099.80 is: 6,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.74 : 16,681.52 = 4,099.80 : x
  2. Step 2: Convert to fraction form
    11,124.74/16,681.52 = 4,099.80/x
  3. Step 3: Cross multiply
    11,124.74x = 16,681.52 × 4,099.80
  4. Step 4: Simplify right side
    11,124.74x = 68,390,895.70
  5. Step 5: Solve for x
    x = 68,390,895.70/11,124.74
  6. Step 6: Final answer
    x = 6,147.64

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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.