Home / 19,641.80-27,109.56-11,144.08

Finding the Fourth Proportional to 19,641.80, 27,109.56 and 11,144.08

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Solution

The fourth proportional to 19,641.80, 27,109.56 and 11,144.08 is: 15,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.80 : 27,109.56 = 11,144.08 : x
  2. Step 2: Convert to fraction form
    19,641.80/27,109.56 = 11,144.08/x
  3. Step 3: Cross multiply
    19,641.80x = 27,109.56 × 11,144.08
  4. Step 4: Simplify right side
    19,641.80x = 302,111,105.40
  5. Step 5: Solve for x
    x = 302,111,105.40/19,641.80
  6. Step 6: Final answer
    x = 15,381.03

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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.