Home / 19,749.65-27,252.45-11,790.78

Finding the Fourth Proportional to 19,749.65, 27,252.45 and 11,790.78

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Solution

The fourth proportional to 19,749.65, 27,252.45 and 11,790.78 is: 16,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,749.65 : 27,252.45 = 11,790.78 : x
  2. Step 2: Convert to fraction form
    19,749.65/27,252.45 = 11,790.78/x
  3. Step 3: Cross multiply
    19,749.65x = 27,252.45 × 11,790.78
  4. Step 4: Simplify right side
    19,749.65x = 321,327,642.41
  5. Step 5: Solve for x
    x = 321,327,642.41/19,749.65
  6. Step 6: Final answer
    x = 16,270.05

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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.