Home / 8,686.04-11,986.83-5,148.57

Finding the Fourth Proportional to 8,686.04, 11,986.83 and 5,148.57

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Solution

The fourth proportional to 8,686.04, 11,986.83 and 5,148.57 is: 7,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.04 : 11,986.83 = 5,148.57 : x
  2. Step 2: Convert to fraction form
    8,686.04/11,986.83 = 5,148.57/x
  3. Step 3: Cross multiply
    8,686.04x = 11,986.83 × 5,148.57
  4. Step 4: Simplify right side
    8,686.04x = 61,715,033.33
  5. Step 5: Solve for x
    x = 61,715,033.33/8,686.04
  6. Step 6: Final answer
    x = 7,105.09

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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.