Home / 14,003.28-20,998.31-5,112.45

Finding the Fourth Proportional to 14,003.28, 20,998.31 and 5,112.45

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Solution

The fourth proportional to 14,003.28, 20,998.31 and 5,112.45 is: 7,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.28 : 20,998.31 = 5,112.45 : x
  2. Step 2: Convert to fraction form
    14,003.28/20,998.31 = 5,112.45/x
  3. Step 3: Cross multiply
    14,003.28x = 20,998.31 × 5,112.45
  4. Step 4: Simplify right side
    14,003.28x = 107,352,784.40
  5. Step 5: Solve for x
    x = 107,352,784.40/14,003.28
  6. Step 6: Final answer
    x = 7,666.26

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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.