Home / 7,485.42-11,210.31-7,222.98

Finding the Fourth Proportional to 7,485.42, 11,210.31 and 7,222.98

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Solution

The fourth proportional to 7,485.42, 11,210.31 and 7,222.98 is: 10,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.42 : 11,210.31 = 7,222.98 : x
  2. Step 2: Convert to fraction form
    7,485.42/11,210.31 = 7,222.98/x
  3. Step 3: Cross multiply
    7,485.42x = 11,210.31 × 7,222.98
  4. Step 4: Simplify right side
    7,485.42x = 80,971,844.92
  5. Step 5: Solve for x
    x = 80,971,844.92/7,485.42
  6. Step 6: Final answer
    x = 10,817.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.