Home / 12,635.37-18,948.30-4,200.30

Finding the Fourth Proportional to 12,635.37, 18,948.30 and 4,200.30

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Solution

The fourth proportional to 12,635.37, 18,948.30 and 4,200.30 is: 6,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.37 : 18,948.30 = 4,200.30 : x
  2. Step 2: Convert to fraction form
    12,635.37/18,948.30 = 4,200.30/x
  3. Step 3: Cross multiply
    12,635.37x = 18,948.30 × 4,200.30
  4. Step 4: Simplify right side
    12,635.37x = 79,588,544.49
  5. Step 5: Solve for x
    x = 79,588,544.49/12,635.37
  6. Step 6: Final answer
    x = 6,298.87

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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.