Home / 7,725.89-11,569.94-6,977.09

Finding the Fourth Proportional to 7,725.89, 11,569.94 and 6,977.09

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Solution

The fourth proportional to 7,725.89, 11,569.94 and 6,977.09 is: 10,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.89 : 11,569.94 = 6,977.09 : x
  2. Step 2: Convert to fraction form
    7,725.89/11,569.94 = 6,977.09/x
  3. Step 3: Cross multiply
    7,725.89x = 11,569.94 × 6,977.09
  4. Step 4: Simplify right side
    7,725.89x = 80,724,516.61
  5. Step 5: Solve for x
    x = 80,724,516.61/7,725.89
  6. Step 6: Final answer
    x = 10,448.57

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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.