Home / 12,513.08-18,770.96-4,192.76

Finding the Fourth Proportional to 12,513.08, 18,770.96 and 4,192.76

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Solution

The fourth proportional to 12,513.08, 18,770.96 and 4,192.76 is: 6,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.08 : 18,770.96 = 4,192.76 : x
  2. Step 2: Convert to fraction form
    12,513.08/18,770.96 = 4,192.76/x
  3. Step 3: Cross multiply
    12,513.08x = 18,770.96 × 4,192.76
  4. Step 4: Simplify right side
    12,513.08x = 78,702,046.88
  5. Step 5: Solve for x
    x = 78,702,046.88/12,513.08
  6. Step 6: Final answer
    x = 6,289.58

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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.