Home / 13,939.72-20,909.62-9,798.25

Finding the Fourth Proportional to 13,939.72, 20,909.62 and 9,798.25

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Solution

The fourth proportional to 13,939.72, 20,909.62 and 9,798.25 is: 14,697.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.72 : 20,909.62 = 9,798.25 : x
  2. Step 2: Convert to fraction form
    13,939.72/20,909.62 = 9,798.25/x
  3. Step 3: Cross multiply
    13,939.72x = 20,909.62 × 9,798.25
  4. Step 4: Simplify right side
    13,939.72x = 204,877,744.00
  5. Step 5: Solve for x
    x = 204,877,744.00/13,939.72
  6. Step 6: Final answer
    x = 14,697.41

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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.