Home / 10,965.09-15,131.85-6,249.39

Finding the Fourth Proportional to 10,965.09, 15,131.85 and 6,249.39

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Solution

The fourth proportional to 10,965.09, 15,131.85 and 6,249.39 is: 8,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.09 : 15,131.85 = 6,249.39 : x
  2. Step 2: Convert to fraction form
    10,965.09/15,131.85 = 6,249.39/x
  3. Step 3: Cross multiply
    10,965.09x = 15,131.85 × 6,249.39
  4. Step 4: Simplify right side
    10,965.09x = 94,564,832.07
  5. Step 5: Solve for x
    x = 94,564,832.07/10,965.09
  6. Step 6: Final answer
    x = 8,624.17

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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.