Home / 13,143.91-19,714.53-4,377.88

Finding the Fourth Proportional to 13,143.91, 19,714.53 and 4,377.88

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Solution

The fourth proportional to 13,143.91, 19,714.53 and 4,377.88 is: 6,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.91 : 19,714.53 = 4,377.88 : x
  2. Step 2: Convert to fraction form
    13,143.91/19,714.53 = 4,377.88/x
  3. Step 3: Cross multiply
    13,143.91x = 19,714.53 × 4,377.88
  4. Step 4: Simplify right side
    13,143.91x = 86,307,846.60
  5. Step 5: Solve for x
    x = 86,307,846.60/13,143.91
  6. Step 6: Final answer
    x = 6,566.38

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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.