Home / 10,839.21-14,958.45-6,123.80

Finding the Fourth Proportional to 10,839.21, 14,958.45 and 6,123.80

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Solution

The fourth proportional to 10,839.21, 14,958.45 and 6,123.80 is: 8,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.21 : 14,958.45 = 6,123.80 : x
  2. Step 2: Convert to fraction form
    10,839.21/14,958.45 = 6,123.80/x
  3. Step 3: Cross multiply
    10,839.21x = 14,958.45 × 6,123.80
  4. Step 4: Simplify right side
    10,839.21x = 91,602,481.32
  5. Step 5: Solve for x
    x = 91,602,481.32/10,839.21
  6. Step 6: Final answer
    x = 8,451.03

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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.