Home / 9,279.12-13,912.58-4,279.44

Finding the Fourth Proportional to 9,279.12, 13,912.58 and 4,279.44

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Solution

The fourth proportional to 9,279.12, 13,912.58 and 4,279.44 is: 6,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.12 : 13,912.58 = 4,279.44 : x
  2. Step 2: Convert to fraction form
    9,279.12/13,912.58 = 4,279.44/x
  3. Step 3: Cross multiply
    9,279.12x = 13,912.58 × 4,279.44
  4. Step 4: Simplify right side
    9,279.12x = 59,538,051.36
  5. Step 5: Solve for x
    x = 59,538,051.36/9,279.12
  6. Step 6: Final answer
    x = 6,416.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.