Home / 8,683.58-11,980.23-5,279.42

Finding the Fourth Proportional to 8,683.58, 11,980.23 and 5,279.42

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Solution

The fourth proportional to 8,683.58, 11,980.23 and 5,279.42 is: 7,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.58 : 11,980.23 = 5,279.42 : x
  2. Step 2: Convert to fraction form
    8,683.58/11,980.23 = 5,279.42/x
  3. Step 3: Cross multiply
    8,683.58x = 11,980.23 × 5,279.42
  4. Step 4: Simplify right side
    8,683.58x = 63,248,665.87
  5. Step 5: Solve for x
    x = 63,248,665.87/8,683.58
  6. Step 6: Final answer
    x = 7,283.71

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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.