Home / 12,917.04-19,377.12-4,148.88

Finding the Fourth Proportional to 12,917.04, 19,377.12 and 4,148.88

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Solution

The fourth proportional to 12,917.04, 19,377.12 and 4,148.88 is: 6,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.04 : 19,377.12 = 4,148.88 : x
  2. Step 2: Convert to fraction form
    12,917.04/19,377.12 = 4,148.88/x
  3. Step 3: Cross multiply
    12,917.04x = 19,377.12 × 4,148.88
  4. Step 4: Simplify right side
    12,917.04x = 80,393,345.63
  5. Step 5: Solve for x
    x = 80,393,345.63/12,917.04
  6. Step 6: Final answer
    x = 6,223.82

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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.