Home / 7,714.20-11,559-4,586.79

Finding the Fourth Proportional to 7,714.20, 11,559 and 4,586.79

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Solution

The fourth proportional to 7,714.20, 11,559 and 4,586.79 is: 6,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.20 : 11,559 = 4,586.79 : x
  2. Step 2: Convert to fraction form
    7,714.20/11,559 = 4,586.79/x
  3. Step 3: Cross multiply
    7,714.20x = 11,559 × 4,586.79
  4. Step 4: Simplify right side
    7,714.20x = 53,018,705.61
  5. Step 5: Solve for x
    x = 53,018,705.61/7,714.20
  6. Step 6: Final answer
    x = 6,872.87

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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.