Home / 10,511.25-15,771.07-4,271.75

Finding the Fourth Proportional to 10,511.25, 15,771.07 and 4,271.75

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Solution

The fourth proportional to 10,511.25, 15,771.07 and 4,271.75 is: 6,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.25 : 15,771.07 = 4,271.75 : x
  2. Step 2: Convert to fraction form
    10,511.25/15,771.07 = 4,271.75/x
  3. Step 3: Cross multiply
    10,511.25x = 15,771.07 × 4,271.75
  4. Step 4: Simplify right side
    10,511.25x = 67,370,085.09
  5. Step 5: Solve for x
    x = 67,370,085.09/10,511.25
  6. Step 6: Final answer
    x = 6,409.33

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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.