Home / 19,698.84-27,181.71-11,315.34

Finding the Fourth Proportional to 19,698.84, 27,181.71 and 11,315.34

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Solution

The fourth proportional to 19,698.84, 27,181.71 and 11,315.34 is: 15,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.84 : 27,181.71 = 11,315.34 : x
  2. Step 2: Convert to fraction form
    19,698.84/27,181.71 = 11,315.34/x
  3. Step 3: Cross multiply
    19,698.84x = 27,181.71 × 11,315.34
  4. Step 4: Simplify right side
    19,698.84x = 307,570,290.43
  5. Step 5: Solve for x
    x = 307,570,290.43/19,698.84
  6. Step 6: Final answer
    x = 15,613.62

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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.