Home / 9,310.24-12,847.80-5,118.40

Finding the Fourth Proportional to 9,310.24, 12,847.80 and 5,118.40

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Solution

The fourth proportional to 9,310.24, 12,847.80 and 5,118.40 is: 7,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,310.24 : 12,847.80 = 5,118.40 : x
  2. Step 2: Convert to fraction form
    9,310.24/12,847.80 = 5,118.40/x
  3. Step 3: Cross multiply
    9,310.24x = 12,847.80 × 5,118.40
  4. Step 4: Simplify right side
    9,310.24x = 65,760,179.52
  5. Step 5: Solve for x
    x = 65,760,179.52/9,310.24
  6. Step 6: Final answer
    x = 7,063.21

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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.