Home / 13,258.99-19,924.94-12,392.09

Finding the Fourth Proportional to 13,258.99, 19,924.94 and 12,392.09

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Solution

The fourth proportional to 13,258.99, 19,924.94 and 12,392.09 is: 18,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.99 : 19,924.94 = 12,392.09 : x
  2. Step 2: Convert to fraction form
    13,258.99/19,924.94 = 12,392.09/x
  3. Step 3: Cross multiply
    13,258.99x = 19,924.94 × 12,392.09
  4. Step 4: Simplify right side
    13,258.99x = 246,911,488.14
  5. Step 5: Solve for x
    x = 246,911,488.14/13,258.99
  6. Step 6: Final answer
    x = 18,622.20

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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.