Home / 18,705.47-25,818.89-11,055.83

Finding the Fourth Proportional to 18,705.47, 25,818.89 and 11,055.83

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Solution

The fourth proportional to 18,705.47, 25,818.89 and 11,055.83 is: 15,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.47 : 25,818.89 = 11,055.83 : x
  2. Step 2: Convert to fraction form
    18,705.47/25,818.89 = 11,055.83/x
  3. Step 3: Cross multiply
    18,705.47x = 25,818.89 × 11,055.83
  4. Step 4: Simplify right side
    18,705.47x = 285,449,074.26
  5. Step 5: Solve for x
    x = 285,449,074.26/18,705.47
  6. Step 6: Final answer
    x = 15,260.20

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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.