Home / 18,843.78-26,005.37-10,345.85

Finding the Fourth Proportional to 18,843.78, 26,005.37 and 10,345.85

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Solution

The fourth proportional to 18,843.78, 26,005.37 and 10,345.85 is: 14,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.78 : 26,005.37 = 10,345.85 : x
  2. Step 2: Convert to fraction form
    18,843.78/26,005.37 = 10,345.85/x
  3. Step 3: Cross multiply
    18,843.78x = 26,005.37 × 10,345.85
  4. Step 4: Simplify right side
    18,843.78x = 269,047,475.46
  5. Step 5: Solve for x
    x = 269,047,475.46/18,843.78
  6. Step 6: Final answer
    x = 14,277.79

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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.