Home / 14,998.30-20,697.09-8,283.78

Finding the Fourth Proportional to 14,998.30, 20,697.09 and 8,283.78

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Solution

The fourth proportional to 14,998.30, 20,697.09 and 8,283.78 is: 11,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998.30 : 20,697.09 = 8,283.78 : x
  2. Step 2: Convert to fraction form
    14,998.30/20,697.09 = 8,283.78/x
  3. Step 3: Cross multiply
    14,998.30x = 20,697.09 × 8,283.78
  4. Step 4: Simplify right side
    14,998.30x = 171,450,140.20
  5. Step 5: Solve for x
    x = 171,450,140.20/14,998.30
  6. Step 6: Final answer
    x = 11,431.31

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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.