Home / 19,609.80-27,061.43-11,111.88

Finding the Fourth Proportional to 19,609.80, 27,061.43 and 11,111.88

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Solution

The fourth proportional to 19,609.80, 27,061.43 and 11,111.88 is: 15,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.80 : 27,061.43 = 11,111.88 : x
  2. Step 2: Convert to fraction form
    19,609.80/27,061.43 = 11,111.88/x
  3. Step 3: Cross multiply
    19,609.80x = 27,061.43 × 11,111.88
  4. Step 4: Simplify right side
    19,609.80x = 300,703,408.71
  5. Step 5: Solve for x
    x = 300,703,408.71/19,609.80
  6. Step 6: Final answer
    x = 15,334.35

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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.