Home / 12,108.90-18,165.48-5,535.75

Finding the Fourth Proportional to 12,108.90, 18,165.48 and 5,535.75

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Solution

The fourth proportional to 12,108.90, 18,165.48 and 5,535.75 is: 8,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.90 : 18,165.48 = 5,535.75 : x
  2. Step 2: Convert to fraction form
    12,108.90/18,165.48 = 5,535.75/x
  3. Step 3: Cross multiply
    12,108.90x = 18,165.48 × 5,535.75
  4. Step 4: Simplify right side
    12,108.90x = 100,559,555.91
  5. Step 5: Solve for x
    x = 100,559,555.91/12,108.90
  6. Step 6: Final answer
    x = 8,304.60

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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.