Home / 7,661.47-10,571.55-4,518.28

Finding the Fourth Proportional to 7,661.47, 10,571.55 and 4,518.28

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Solution

The fourth proportional to 7,661.47, 10,571.55 and 4,518.28 is: 6,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.47 : 10,571.55 = 4,518.28 : x
  2. Step 2: Convert to fraction form
    7,661.47/10,571.55 = 4,518.28/x
  3. Step 3: Cross multiply
    7,661.47x = 10,571.55 × 4,518.28
  4. Step 4: Simplify right side
    7,661.47x = 47,765,222.93
  5. Step 5: Solve for x
    x = 47,765,222.93/7,661.47
  6. Step 6: Final answer
    x = 6,234.47

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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.