Home / 9,226.20-12,731.40-5,246.40

Finding the Fourth Proportional to 9,226.20, 12,731.40 and 5,246.40

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Solution

The fourth proportional to 9,226.20, 12,731.40 and 5,246.40 is: 7,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,226.20 : 12,731.40 = 5,246.40 : x
  2. Step 2: Convert to fraction form
    9,226.20/12,731.40 = 5,246.40/x
  3. Step 3: Cross multiply
    9,226.20x = 12,731.40 × 5,246.40
  4. Step 4: Simplify right side
    9,226.20x = 66,794,016.96
  5. Step 5: Solve for x
    x = 66,794,016.96/9,226.20
  6. Step 6: Final answer
    x = 7,239.60

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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.