Home / 7,864.33-10,855.62-5,212.60

Finding the Fourth Proportional to 7,864.33, 10,855.62 and 5,212.60

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Solution

The fourth proportional to 7,864.33, 10,855.62 and 5,212.60 is: 7,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.33 : 10,855.62 = 5,212.60 : x
  2. Step 2: Convert to fraction form
    7,864.33/10,855.62 = 5,212.60/x
  3. Step 3: Cross multiply
    7,864.33x = 10,855.62 × 5,212.60
  4. Step 4: Simplify right side
    7,864.33x = 56,586,004.81
  5. Step 5: Solve for x
    x = 56,586,004.81/7,864.33
  6. Step 6: Final answer
    x = 7,195.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.