Home / 10,839.72-14,943.96-6,858.84

Finding the Fourth Proportional to 10,839.72, 14,943.96 and 6,858.84

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Solution

The fourth proportional to 10,839.72, 14,943.96 and 6,858.84 is: 9,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.72 : 14,943.96 = 6,858.84 : x
  2. Step 2: Convert to fraction form
    10,839.72/14,943.96 = 6,858.84/x
  3. Step 3: Cross multiply
    10,839.72x = 14,943.96 × 6,858.84
  4. Step 4: Simplify right side
    10,839.72x = 102,498,230.61
  5. Step 5: Solve for x
    x = 102,498,230.61/10,839.72
  6. Step 6: Final answer
    x = 9,455.80

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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.