Home / 7,714.18-11,560.20-4,790.80

Finding the Fourth Proportional to 7,714.18, 11,560.20 and 4,790.80

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Solution

The fourth proportional to 7,714.18, 11,560.20 and 4,790.80 is: 7,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.18 : 11,560.20 = 4,790.80 : x
  2. Step 2: Convert to fraction form
    7,714.18/11,560.20 = 4,790.80/x
  3. Step 3: Cross multiply
    7,714.18x = 11,560.20 × 4,790.80
  4. Step 4: Simplify right side
    7,714.18x = 55,382,606.16
  5. Step 5: Solve for x
    x = 55,382,606.16/7,714.18
  6. Step 6: Final answer
    x = 7,179.33

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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.