Home / 10,839.40-16,186.73-10,285.84

Finding the Fourth Proportional to 10,839.40, 16,186.73 and 10,285.84

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Solution

The fourth proportional to 10,839.40, 16,186.73 and 10,285.84 is: 15,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.40 : 16,186.73 = 10,285.84 : x
  2. Step 2: Convert to fraction form
    10,839.40/16,186.73 = 10,285.84/x
  3. Step 3: Cross multiply
    10,839.40x = 16,186.73 × 10,285.84
  4. Step 4: Simplify right side
    10,839.40x = 166,494,114.90
  5. Step 5: Solve for x
    x = 166,494,114.90/10,839.40
  6. Step 6: Final answer
    x = 15,360.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.