Home / 18,930.36-26,115.87-10,969.68

Finding the Fourth Proportional to 18,930.36, 26,115.87 and 10,969.68

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Solution

The fourth proportional to 18,930.36, 26,115.87 and 10,969.68 is: 15,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.36 : 26,115.87 = 10,969.68 : x
  2. Step 2: Convert to fraction form
    18,930.36/26,115.87 = 10,969.68/x
  3. Step 3: Cross multiply
    18,930.36x = 26,115.87 × 10,969.68
  4. Step 4: Simplify right side
    18,930.36x = 286,482,736.82
  5. Step 5: Solve for x
    x = 286,482,736.82/18,930.36
  6. Step 6: Final answer
    x = 15,133.51

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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.