Home / 18,977.90-28,466.89-5,830.18

Finding the Fourth Proportional to 18,977.90, 28,466.89 and 5,830.18

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Solution

The fourth proportional to 18,977.90, 28,466.89 and 5,830.18 is: 8,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.90 : 28,466.89 = 5,830.18 : x
  2. Step 2: Convert to fraction form
    18,977.90/28,466.89 = 5,830.18/x
  3. Step 3: Cross multiply
    18,977.90x = 28,466.89 × 5,830.18
  4. Step 4: Simplify right side
    18,977.90x = 165,967,039.79
  5. Step 5: Solve for x
    x = 165,967,039.79/18,977.90
  6. Step 6: Final answer
    x = 8,745.28

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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.