Home / 8,075.75-11,145.58-4,539.65

Finding the Fourth Proportional to 8,075.75, 11,145.58 and 4,539.65

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Solution

The fourth proportional to 8,075.75, 11,145.58 and 4,539.65 is: 6,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.75 : 11,145.58 = 4,539.65 : x
  2. Step 2: Convert to fraction form
    8,075.75/11,145.58 = 4,539.65/x
  3. Step 3: Cross multiply
    8,075.75x = 11,145.58 × 4,539.65
  4. Step 4: Simplify right side
    8,075.75x = 50,596,990.71
  5. Step 5: Solve for x
    x = 50,596,990.71/8,075.75
  6. Step 6: Final answer
    x = 6,265.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.