Home / 14,169.78-21,255.42-4,308.31

Finding the Fourth Proportional to 14,169.78, 21,255.42 and 4,308.31

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Solution

The fourth proportional to 14,169.78, 21,255.42 and 4,308.31 is: 6,462.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.78 : 21,255.42 = 4,308.31 : x
  2. Step 2: Convert to fraction form
    14,169.78/21,255.42 = 4,308.31/x
  3. Step 3: Cross multiply
    14,169.78x = 21,255.42 × 4,308.31
  4. Step 4: Simplify right side
    14,169.78x = 91,574,938.54
  5. Step 5: Solve for x
    x = 91,574,938.54/14,169.78
  6. Step 6: Final answer
    x = 6,462.69

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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.