Home / 19,519.72-26,911.08-12,794.84

Finding the Fourth Proportional to 19,519.72, 26,911.08 and 12,794.84

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Solution

The fourth proportional to 19,519.72, 26,911.08 and 12,794.84 is: 17,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.72 : 26,911.08 = 12,794.84 : x
  2. Step 2: Convert to fraction form
    19,519.72/26,911.08 = 12,794.84/x
  3. Step 3: Cross multiply
    19,519.72x = 26,911.08 × 12,794.84
  4. Step 4: Simplify right side
    19,519.72x = 344,322,962.83
  5. Step 5: Solve for x
    x = 344,322,962.83/19,519.72
  6. Step 6: Final answer
    x = 17,639.75

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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.