Home / 12,897.92-19,348.58-4,129.76

Finding the Fourth Proportional to 12,897.92, 19,348.58 and 4,129.76

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Solution

The fourth proportional to 12,897.92, 19,348.58 and 4,129.76 is: 6,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.92 : 19,348.58 = 4,129.76 : x
  2. Step 2: Convert to fraction form
    12,897.92/19,348.58 = 4,129.76/x
  3. Step 3: Cross multiply
    12,897.92x = 19,348.58 × 4,129.76
  4. Step 4: Simplify right side
    12,897.92x = 79,904,991.74
  5. Step 5: Solve for x
    x = 79,904,991.74/12,897.92
  6. Step 6: Final answer
    x = 6,195.18

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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.