Home / 7,723.87-11,558.12-6,687.45

Finding the Fourth Proportional to 7,723.87, 11,558.12 and 6,687.45

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Solution

The fourth proportional to 7,723.87, 11,558.12 and 6,687.45 is: 10,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.87 : 11,558.12 = 6,687.45 : x
  2. Step 2: Convert to fraction form
    7,723.87/11,558.12 = 6,687.45/x
  3. Step 3: Cross multiply
    7,723.87x = 11,558.12 × 6,687.45
  4. Step 4: Simplify right side
    7,723.87x = 77,294,366.31
  5. Step 5: Solve for x
    x = 77,294,366.31/7,723.87
  6. Step 6: Final answer
    x = 10,007.21

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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.