Home / 12,897.11-19,339.18-5,976.47

Finding the Fourth Proportional to 12,897.11, 19,339.18 and 5,976.47

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Solution

The fourth proportional to 12,897.11, 19,339.18 and 5,976.47 is: 8,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.11 : 19,339.18 = 5,976.47 : x
  2. Step 2: Convert to fraction form
    12,897.11/19,339.18 = 5,976.47/x
  3. Step 3: Cross multiply
    12,897.11x = 19,339.18 × 5,976.47
  4. Step 4: Simplify right side
    12,897.11x = 115,580,029.09
  5. Step 5: Solve for x
    x = 115,580,029.09/12,897.11
  6. Step 6: Final answer
    x = 8,961.70

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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.