Home / 9,075.75-13,613.63-2,919.75

Finding the Fourth Proportional to 9,075.75, 13,613.63 and 2,919.75

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Solution

The fourth proportional to 9,075.75, 13,613.63 and 2,919.75 is: 4,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075.75 : 13,613.63 = 2,919.75 : x
  2. Step 2: Convert to fraction form
    9,075.75/13,613.63 = 2,919.75/x
  3. Step 3: Cross multiply
    9,075.75x = 13,613.63 × 2,919.75
  4. Step 4: Simplify right side
    9,075.75x = 39,748,396.19
  5. Step 5: Solve for x
    x = 39,748,396.19/9,075.75
  6. Step 6: Final answer
    x = 4,379.63

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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.