Home / 18,713.82-28,085.40-13,054.68

Finding the Fourth Proportional to 18,713.82, 28,085.40 and 13,054.68

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Solution

The fourth proportional to 18,713.82, 28,085.40 and 13,054.68 is: 19,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.82 : 28,085.40 = 13,054.68 : x
  2. Step 2: Convert to fraction form
    18,713.82/28,085.40 = 13,054.68/x
  3. Step 3: Cross multiply
    18,713.82x = 28,085.40 × 13,054.68
  4. Step 4: Simplify right side
    18,713.82x = 366,645,979.89
  5. Step 5: Solve for x
    x = 366,645,979.89/18,713.82
  6. Step 6: Final answer
    x = 19,592.25

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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.