Home / 9,956.16-13,739.20-5,479.90

Finding the Fourth Proportional to 9,956.16, 13,739.20 and 5,479.90

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Solution

The fourth proportional to 9,956.16, 13,739.20 and 5,479.90 is: 7,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.16 : 13,739.20 = 5,479.90 : x
  2. Step 2: Convert to fraction form
    9,956.16/13,739.20 = 5,479.90/x
  3. Step 3: Cross multiply
    9,956.16x = 13,739.20 × 5,479.90
  4. Step 4: Simplify right side
    9,956.16x = 75,289,442.08
  5. Step 5: Solve for x
    x = 75,289,442.08/9,956.16
  6. Step 6: Final answer
    x = 7,562.10

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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.