Home / 12,645.10-18,942.25-6,300.84

Finding the Fourth Proportional to 12,645.10, 18,942.25 and 6,300.84

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Solution

The fourth proportional to 12,645.10, 18,942.25 and 6,300.84 is: 9,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.10 : 18,942.25 = 6,300.84 : x
  2. Step 2: Convert to fraction form
    12,645.10/18,942.25 = 6,300.84/x
  3. Step 3: Cross multiply
    12,645.10x = 18,942.25 × 6,300.84
  4. Step 4: Simplify right side
    12,645.10x = 119,352,086.49
  5. Step 5: Solve for x
    x = 119,352,086.49/12,645.10
  6. Step 6: Final answer
    x = 9,438.60

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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.