Home / 18,789.51-25,923.65-10,830.65

Finding the Fourth Proportional to 18,789.51, 25,923.65 and 10,830.65

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Solution

The fourth proportional to 18,789.51, 25,923.65 and 10,830.65 is: 14,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.51 : 25,923.65 = 10,830.65 : x
  2. Step 2: Convert to fraction form
    18,789.51/25,923.65 = 10,830.65/x
  3. Step 3: Cross multiply
    18,789.51x = 25,923.65 × 10,830.65
  4. Step 4: Simplify right side
    18,789.51x = 280,769,796.10
  5. Step 5: Solve for x
    x = 280,769,796.10/18,789.51
  6. Step 6: Final answer
    x = 14,942.90

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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.