Home / 19,780.37-27,295.85-10,826.15

Finding the Fourth Proportional to 19,780.37, 27,295.85 and 10,826.15

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Solution

The fourth proportional to 19,780.37, 27,295.85 and 10,826.15 is: 14,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.37 : 27,295.85 = 10,826.15 : x
  2. Step 2: Convert to fraction form
    19,780.37/27,295.85 = 10,826.15/x
  3. Step 3: Cross multiply
    19,780.37x = 27,295.85 × 10,826.15
  4. Step 4: Simplify right side
    19,780.37x = 295,508,775.87
  5. Step 5: Solve for x
    x = 295,508,775.87/19,780.37
  6. Step 6: Final answer
    x = 14,939.50

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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.