Home / 7,620.47-10,515.74-4,262.69

Finding the Fourth Proportional to 7,620.47, 10,515.74 and 4,262.69

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Solution

The fourth proportional to 7,620.47, 10,515.74 and 4,262.69 is: 5,882.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.47 : 10,515.74 = 4,262.69 : x
  2. Step 2: Convert to fraction form
    7,620.47/10,515.74 = 4,262.69/x
  3. Step 3: Cross multiply
    7,620.47x = 10,515.74 × 4,262.69
  4. Step 4: Simplify right side
    7,620.47x = 44,825,265.85
  5. Step 5: Solve for x
    x = 44,825,265.85/7,620.47
  6. Step 6: Final answer
    x = 5,882.22

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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.