Home / 18,111.95-27,146.06-13,169.33

Finding the Fourth Proportional to 18,111.95, 27,146.06 and 13,169.33

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Solution

The fourth proportional to 18,111.95, 27,146.06 and 13,169.33 is: 19,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.95 : 27,146.06 = 13,169.33 : x
  2. Step 2: Convert to fraction form
    18,111.95/27,146.06 = 13,169.33/x
  3. Step 3: Cross multiply
    18,111.95x = 27,146.06 × 13,169.33
  4. Step 4: Simplify right side
    18,111.95x = 357,495,356.49
  5. Step 5: Solve for x
    x = 357,495,356.49/18,111.95
  6. Step 6: Final answer
    x = 19,738.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.