Home / 6,513.08-8,991.88-4,278.85

Finding the Fourth Proportional to 6,513.08, 8,991.88 and 4,278.85

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Solution

The fourth proportional to 6,513.08, 8,991.88 and 4,278.85 is: 5,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.08 : 8,991.88 = 4,278.85 : x
  2. Step 2: Convert to fraction form
    6,513.08/8,991.88 = 4,278.85/x
  3. Step 3: Cross multiply
    6,513.08x = 8,991.88 × 4,278.85
  4. Step 4: Simplify right side
    6,513.08x = 38,474,905.74
  5. Step 5: Solve for x
    x = 38,474,905.74/6,513.08
  6. Step 6: Final answer
    x = 5,907.33

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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.