Home / 12,383.10-18,577.74-3,618.12

Finding the Fourth Proportional to 12,383.10, 18,577.74 and 3,618.12

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Solution

The fourth proportional to 12,383.10, 18,577.74 and 3,618.12 is: 5,428.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.10 : 18,577.74 = 3,618.12 : x
  2. Step 2: Convert to fraction form
    12,383.10/18,577.74 = 3,618.12/x
  3. Step 3: Cross multiply
    12,383.10x = 18,577.74 × 3,618.12
  4. Step 4: Simplify right side
    12,383.10x = 67,216,492.65
  5. Step 5: Solve for x
    x = 67,216,492.65/12,383.10
  6. Step 6: Final answer
    x = 5,428.08

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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.