Home / 18,544.12-25,579.10-12,171.14

Finding the Fourth Proportional to 18,544.12, 25,579.10 and 12,171.14

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Solution

The fourth proportional to 18,544.12, 25,579.10 and 12,171.14 is: 16,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,544.12 : 25,579.10 = 12,171.14 : x
  2. Step 2: Convert to fraction form
    18,544.12/25,579.10 = 12,171.14/x
  3. Step 3: Cross multiply
    18,544.12x = 25,579.10 × 12,171.14
  4. Step 4: Simplify right side
    18,544.12x = 311,326,807.17
  5. Step 5: Solve for x
    x = 311,326,807.17/18,544.12
  6. Step 6: Final answer
    x = 16,788.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.