Home / 18,900.69-26,084.07-10,945.68

Finding the Fourth Proportional to 18,900.69, 26,084.07 and 10,945.68

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Solution

The fourth proportional to 18,900.69, 26,084.07 and 10,945.68 is: 15,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.69 : 26,084.07 = 10,945.68 : x
  2. Step 2: Convert to fraction form
    18,900.69/26,084.07 = 10,945.68/x
  3. Step 3: Cross multiply
    18,900.69x = 26,084.07 × 10,945.68
  4. Step 4: Simplify right side
    18,900.69x = 285,507,883.32
  5. Step 5: Solve for x
    x = 285,507,883.32/18,900.69
  6. Step 6: Final answer
    x = 15,105.69

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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.