Home / 12,955.33-19,434.21-5,164.75

Finding the Fourth Proportional to 12,955.33, 19,434.21 and 5,164.75

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Solution

The fourth proportional to 12,955.33, 19,434.21 and 5,164.75 is: 7,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.33 : 19,434.21 = 5,164.75 : x
  2. Step 2: Convert to fraction form
    12,955.33/19,434.21 = 5,164.75/x
  3. Step 3: Cross multiply
    12,955.33x = 19,434.21 × 5,164.75
  4. Step 4: Simplify right side
    12,955.33x = 100,372,836.10
  5. Step 5: Solve for x
    x = 100,372,836.10/12,955.33
  6. Step 6: Final answer
    x = 7,747.61

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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.