Home / 13,847.37-20,789.51-11,780.65

Finding the Fourth Proportional to 13,847.37, 20,789.51 and 11,780.65

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Solution

The fourth proportional to 13,847.37, 20,789.51 and 11,780.65 is: 17,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.37 : 20,789.51 = 11,780.65 : x
  2. Step 2: Convert to fraction form
    13,847.37/20,789.51 = 11,780.65/x
  3. Step 3: Cross multiply
    13,847.37x = 20,789.51 × 11,780.65
  4. Step 4: Simplify right side
    13,847.37x = 244,913,908.07
  5. Step 5: Solve for x
    x = 244,913,908.07/13,847.37
  6. Step 6: Final answer
    x = 17,686.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.