Home / 8,718.90-13,075.24-3,170.80

Finding the Fourth Proportional to 8,718.90, 13,075.24 and 3,170.80

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Solution

The fourth proportional to 8,718.90, 13,075.24 and 3,170.80 is: 4,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.90 : 13,075.24 = 3,170.80 : x
  2. Step 2: Convert to fraction form
    8,718.90/13,075.24 = 3,170.80/x
  3. Step 3: Cross multiply
    8,718.90x = 13,075.24 × 3,170.80
  4. Step 4: Simplify right side
    8,718.90x = 41,458,970.99
  5. Step 5: Solve for x
    x = 41,458,970.99/8,718.90
  6. Step 6: Final answer
    x = 4,755.07

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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.