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Finding the Fourth Proportional to 10,965.66, 15,133.49 and 6,249.84

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Solution

The fourth proportional to 10,965.66, 15,133.49 and 6,249.84 is: 8,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.66 : 15,133.49 = 6,249.84 : x
  2. Step 2: Convert to fraction form
    10,965.66/15,133.49 = 6,249.84/x
  3. Step 3: Cross multiply
    10,965.66x = 15,133.49 × 6,249.84
  4. Step 4: Simplify right side
    10,965.66x = 94,581,859.89
  5. Step 5: Solve for x
    x = 94,581,859.89/10,965.66
  6. Step 6: Final answer
    x = 8,625.28

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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.