Home / 18,977.70-28,466.26-5,829.78

Finding the Fourth Proportional to 18,977.70, 28,466.26 and 5,829.78

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Solution

The fourth proportional to 18,977.70, 28,466.26 and 5,829.78 is: 8,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.70 : 28,466.26 = 5,829.78 : x
  2. Step 2: Convert to fraction form
    18,977.70/28,466.26 = 5,829.78/x
  3. Step 3: Cross multiply
    18,977.70x = 28,466.26 × 5,829.78
  4. Step 4: Simplify right side
    18,977.70x = 165,952,033.22
  5. Step 5: Solve for x
    x = 165,952,033.22/18,977.70
  6. Step 6: Final answer
    x = 8,744.58

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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.