Home / 7,450.07-11,219.67-6,785.78

Finding the Fourth Proportional to 7,450.07, 11,219.67 and 6,785.78

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Solution

The fourth proportional to 7,450.07, 11,219.67 and 6,785.78 is: 10,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.07 : 11,219.67 = 6,785.78 : x
  2. Step 2: Convert to fraction form
    7,450.07/11,219.67 = 6,785.78/x
  3. Step 3: Cross multiply
    7,450.07x = 11,219.67 × 6,785.78
  4. Step 4: Simplify right side
    7,450.07x = 76,134,156.19
  5. Step 5: Solve for x
    x = 76,134,156.19/7,450.07
  6. Step 6: Final answer
    x = 10,219.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.