Home / 10,245.21-14,137.85-5,768.82

Finding the Fourth Proportional to 10,245.21, 14,137.85 and 5,768.82

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Solution

The fourth proportional to 10,245.21, 14,137.85 and 5,768.82 is: 7,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.21 : 14,137.85 = 5,768.82 : x
  2. Step 2: Convert to fraction form
    10,245.21/14,137.85 = 5,768.82/x
  3. Step 3: Cross multiply
    10,245.21x = 14,137.85 × 5,768.82
  4. Step 4: Simplify right side
    10,245.21x = 81,558,682.99
  5. Step 5: Solve for x
    x = 81,558,682.99/10,245.21
  6. Step 6: Final answer
    x = 7,960.66

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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.