Home / 8,938.44-12,330.90-5,579.08

Finding the Fourth Proportional to 8,938.44, 12,330.90 and 5,579.08

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Solution

The fourth proportional to 8,938.44, 12,330.90 and 5,579.08 is: 7,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.44 : 12,330.90 = 5,579.08 : x
  2. Step 2: Convert to fraction form
    8,938.44/12,330.90 = 5,579.08/x
  3. Step 3: Cross multiply
    8,938.44x = 12,330.90 × 5,579.08
  4. Step 4: Simplify right side
    8,938.44x = 68,795,077.57
  5. Step 5: Solve for x
    x = 68,795,077.57/8,938.44
  6. Step 6: Final answer
    x = 7,696.54

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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.