Home / 14,308.40-21,415.92-13,794.64

Finding the Fourth Proportional to 14,308.40, 21,415.92 and 13,794.64

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Solution

The fourth proportional to 14,308.40, 21,415.92 and 13,794.64 is: 20,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,308.40 : 21,415.92 = 13,794.64 : x
  2. Step 2: Convert to fraction form
    14,308.40/21,415.92 = 13,794.64/x
  3. Step 3: Cross multiply
    14,308.40x = 21,415.92 × 13,794.64
  4. Step 4: Simplify right side
    14,308.40x = 295,424,906.67
  5. Step 5: Solve for x
    x = 295,424,906.67/14,308.40
  6. Step 6: Final answer
    x = 20,646.96

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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.