Home / 6,278.45-8,653.91-5,214.11

Finding the Fourth Proportional to 6,278.45, 8,653.91 and 5,214.11

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Solution

The fourth proportional to 6,278.45, 8,653.91 and 5,214.11 is: 7,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.45 : 8,653.91 = 5,214.11 : x
  2. Step 2: Convert to fraction form
    6,278.45/8,653.91 = 5,214.11/x
  3. Step 3: Cross multiply
    6,278.45x = 8,653.91 × 5,214.11
  4. Step 4: Simplify right side
    6,278.45x = 45,122,369.33
  5. Step 5: Solve for x
    x = 45,122,369.33/6,278.45
  6. Step 6: Final answer
    x = 7,186.87

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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.