Home / 14,101.56-21,142.62-6,699.78

Finding the Fourth Proportional to 14,101.56, 21,142.62 and 6,699.78

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Solution

The fourth proportional to 14,101.56, 21,142.62 and 6,699.78 is: 10,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.56 : 21,142.62 = 6,699.78 : x
  2. Step 2: Convert to fraction form
    14,101.56/21,142.62 = 6,699.78/x
  3. Step 3: Cross multiply
    14,101.56x = 21,142.62 × 6,699.78
  4. Step 4: Simplify right side
    14,101.56x = 141,650,902.62
  5. Step 5: Solve for x
    x = 141,650,902.62/14,101.56
  6. Step 6: Final answer
    x = 10,045.05

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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.