Home / 14,789.67-20,431.33-12,796.76

Finding the Fourth Proportional to 14,789.67, 20,431.33 and 12,796.76

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Solution

The fourth proportional to 14,789.67, 20,431.33 and 12,796.76 is: 17,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.67 : 20,431.33 = 12,796.76 : x
  2. Step 2: Convert to fraction form
    14,789.67/20,431.33 = 12,796.76/x
  3. Step 3: Cross multiply
    14,789.67x = 20,431.33 × 12,796.76
  4. Step 4: Simplify right side
    14,789.67x = 261,454,881.57
  5. Step 5: Solve for x
    x = 261,454,881.57/14,789.67
  6. Step 6: Final answer
    x = 17,678.21

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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.