Home / 18,955.14-26,158.37-10,999.77

Finding the Fourth Proportional to 18,955.14, 26,158.37 and 10,999.77

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Solution

The fourth proportional to 18,955.14, 26,158.37 and 10,999.77 is: 15,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.14 : 26,158.37 = 10,999.77 : x
  2. Step 2: Convert to fraction form
    18,955.14/26,158.37 = 10,999.77/x
  3. Step 3: Cross multiply
    18,955.14x = 26,158.37 × 10,999.77
  4. Step 4: Simplify right side
    18,955.14x = 287,735,998.58
  5. Step 5: Solve for x
    x = 287,735,998.58/18,955.14
  6. Step 6: Final answer
    x = 15,179.84

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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.