Home / 7,365.12-10,163.72-4,007.88

Finding the Fourth Proportional to 7,365.12, 10,163.72 and 4,007.88

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Solution

The fourth proportional to 7,365.12, 10,163.72 and 4,007.88 is: 5,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.12 : 10,163.72 = 4,007.88 : x
  2. Step 2: Convert to fraction form
    7,365.12/10,163.72 = 4,007.88/x
  3. Step 3: Cross multiply
    7,365.12x = 10,163.72 × 4,007.88
  4. Step 4: Simplify right side
    7,365.12x = 40,734,970.11
  5. Step 5: Solve for x
    x = 40,734,970.11/7,365.12
  6. Step 6: Final answer
    x = 5,530.80

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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.