Home / 7,619.68-10,515.18-4,262.55

Finding the Fourth Proportional to 7,619.68, 10,515.18 and 4,262.55

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Solution

The fourth proportional to 7,619.68, 10,515.18 and 4,262.55 is: 5,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.68 : 10,515.18 = 4,262.55 : x
  2. Step 2: Convert to fraction form
    7,619.68/10,515.18 = 4,262.55/x
  3. Step 3: Cross multiply
    7,619.68x = 10,515.18 × 4,262.55
  4. Step 4: Simplify right side
    7,619.68x = 44,821,480.51
  5. Step 5: Solve for x
    x = 44,821,480.51/7,619.68
  6. Step 6: Final answer
    x = 5,882.33

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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.