Home / 12,310.20-18,465.30-5,383.08

Finding the Fourth Proportional to 12,310.20, 18,465.30 and 5,383.08

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Solution

The fourth proportional to 12,310.20, 18,465.30 and 5,383.08 is: 8,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.20 : 18,465.30 = 5,383.08 : x
  2. Step 2: Convert to fraction form
    12,310.20/18,465.30 = 5,383.08/x
  3. Step 3: Cross multiply
    12,310.20x = 18,465.30 × 5,383.08
  4. Step 4: Simplify right side
    12,310.20x = 99,400,187.12
  5. Step 5: Solve for x
    x = 99,400,187.12/12,310.20
  6. Step 6: Final answer
    x = 8,074.62

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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.