Home / 7,821.43-11,673.40-6,762.57

Finding the Fourth Proportional to 7,821.43, 11,673.40 and 6,762.57

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Solution

The fourth proportional to 7,821.43, 11,673.40 and 6,762.57 is: 10,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.43 : 11,673.40 = 6,762.57 : x
  2. Step 2: Convert to fraction form
    7,821.43/11,673.40 = 6,762.57/x
  3. Step 3: Cross multiply
    7,821.43x = 11,673.40 × 6,762.57
  4. Step 4: Simplify right side
    7,821.43x = 78,942,184.64
  5. Step 5: Solve for x
    x = 78,942,184.64/7,821.43
  6. Step 6: Final answer
    x = 10,093.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.