Home / 12,165.24-18,239.43-4,770.44

Finding the Fourth Proportional to 12,165.24, 18,239.43 and 4,770.44

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Solution

The fourth proportional to 12,165.24, 18,239.43 and 4,770.44 is: 7,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.24 : 18,239.43 = 4,770.44 : x
  2. Step 2: Convert to fraction form
    12,165.24/18,239.43 = 4,770.44/x
  3. Step 3: Cross multiply
    12,165.24x = 18,239.43 × 4,770.44
  4. Step 4: Simplify right side
    12,165.24x = 87,010,177.30
  5. Step 5: Solve for x
    x = 87,010,177.30/12,165.24
  6. Step 6: Final answer
    x = 7,152.36

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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.