Home / 14,001.58-20,997.80-5,114.86

Finding the Fourth Proportional to 14,001.58, 20,997.80 and 5,114.86

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Solution

The fourth proportional to 14,001.58, 20,997.80 and 5,114.86 is: 7,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.58 : 20,997.80 = 5,114.86 : x
  2. Step 2: Convert to fraction form
    14,001.58/20,997.80 = 5,114.86/x
  3. Step 3: Cross multiply
    14,001.58x = 20,997.80 × 5,114.86
  4. Step 4: Simplify right side
    14,001.58x = 107,400,866.53
  5. Step 5: Solve for x
    x = 107,400,866.53/14,001.58
  6. Step 6: Final answer
    x = 7,670.63

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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.