Home / 14,507.54-20,021.82-8,135.22

Finding the Fourth Proportional to 14,507.54, 20,021.82 and 8,135.22

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Solution

The fourth proportional to 14,507.54, 20,021.82 and 8,135.22 is: 11,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.54 : 20,021.82 = 8,135.22 : x
  2. Step 2: Convert to fraction form
    14,507.54/20,021.82 = 8,135.22/x
  3. Step 3: Cross multiply
    14,507.54x = 20,021.82 × 8,135.22
  4. Step 4: Simplify right side
    14,507.54x = 162,881,910.50
  5. Step 5: Solve for x
    x = 162,881,910.50/14,507.54
  6. Step 6: Final answer
    x = 11,227.40

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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.