Home / 11,681.55-17,511.80-4,280.85

Finding the Fourth Proportional to 11,681.55, 17,511.80 and 4,280.85

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Solution

The fourth proportional to 11,681.55, 17,511.80 and 4,280.85 is: 6,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.55 : 17,511.80 = 4,280.85 : x
  2. Step 2: Convert to fraction form
    11,681.55/17,511.80 = 4,280.85/x
  3. Step 3: Cross multiply
    11,681.55x = 17,511.80 × 4,280.85
  4. Step 4: Simplify right side
    11,681.55x = 74,965,367.63
  5. Step 5: Solve for x
    x = 74,965,367.63/11,681.55
  6. Step 6: Final answer
    x = 6,417.42

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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.