Home / 9,135.07-13,702.61-2,209.57

Finding the Fourth Proportional to 9,135.07, 13,702.61 and 2,209.57

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Solution

The fourth proportional to 9,135.07, 13,702.61 and 2,209.57 is: 3,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.07 : 13,702.61 = 2,209.57 : x
  2. Step 2: Convert to fraction form
    9,135.07/13,702.61 = 2,209.57/x
  3. Step 3: Cross multiply
    9,135.07x = 13,702.61 × 2,209.57
  4. Step 4: Simplify right side
    9,135.07x = 30,276,847.25
  5. Step 5: Solve for x
    x = 30,276,847.25/9,135.07
  6. Step 6: Final answer
    x = 3,314.35

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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.