Home / 11,072.84-15,278.64-6,357.02

Finding the Fourth Proportional to 11,072.84, 15,278.64 and 6,357.02

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Solution

The fourth proportional to 11,072.84, 15,278.64 and 6,357.02 is: 8,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.84 : 15,278.64 = 6,357.02 : x
  2. Step 2: Convert to fraction form
    11,072.84/15,278.64 = 6,357.02/x
  3. Step 3: Cross multiply
    11,072.84x = 15,278.64 × 6,357.02
  4. Step 4: Simplify right side
    11,072.84x = 97,126,620.05
  5. Step 5: Solve for x
    x = 97,126,620.05/11,072.84
  6. Step 6: Final answer
    x = 8,771.61

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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.