Home / 9,956.12-13,739.44-5,479.87

Finding the Fourth Proportional to 9,956.12, 13,739.44 and 5,479.87

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Solution

The fourth proportional to 9,956.12, 13,739.44 and 5,479.87 is: 7,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.12 : 13,739.44 = 5,479.87 : x
  2. Step 2: Convert to fraction form
    9,956.12/13,739.44 = 5,479.87/x
  3. Step 3: Cross multiply
    9,956.12x = 13,739.44 × 5,479.87
  4. Step 4: Simplify right side
    9,956.12x = 75,290,345.07
  5. Step 5: Solve for x
    x = 75,290,345.07/9,956.12
  6. Step 6: Final answer
    x = 7,562.22

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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.