Home / 12,897.07-19,345.07-4,131.79

Finding the Fourth Proportional to 12,897.07, 19,345.07 and 4,131.79

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Solution

The fourth proportional to 12,897.07, 19,345.07 and 4,131.79 is: 6,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.07 : 19,345.07 = 4,131.79 : x
  2. Step 2: Convert to fraction form
    12,897.07/19,345.07 = 4,131.79/x
  3. Step 3: Cross multiply
    12,897.07x = 19,345.07 × 4,131.79
  4. Step 4: Simplify right side
    12,897.07x = 79,929,746.12
  5. Step 5: Solve for x
    x = 79,929,746.12/12,897.07
  6. Step 6: Final answer
    x = 6,197.51

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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.