Home / 18,178.22-25,055.10-13,869.83

Finding the Fourth Proportional to 18,178.22, 25,055.10 and 13,869.83

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Solution

The fourth proportional to 18,178.22, 25,055.10 and 13,869.83 is: 19,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.22 : 25,055.10 = 13,869.83 : x
  2. Step 2: Convert to fraction form
    18,178.22/25,055.10 = 13,869.83/x
  3. Step 3: Cross multiply
    18,178.22x = 25,055.10 × 13,869.83
  4. Step 4: Simplify right side
    18,178.22x = 347,509,852.36
  5. Step 5: Solve for x
    x = 347,509,852.36/18,178.22
  6. Step 6: Final answer
    x = 19,116.83

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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.