Home / 12,860.31-19,292.28-4,092.24

Finding the Fourth Proportional to 12,860.31, 19,292.28 and 4,092.24

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Solution

The fourth proportional to 12,860.31, 19,292.28 and 4,092.24 is: 6,138.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.31 : 19,292.28 = 4,092.24 : x
  2. Step 2: Convert to fraction form
    12,860.31/19,292.28 = 4,092.24/x
  3. Step 3: Cross multiply
    12,860.31x = 19,292.28 × 4,092.24
  4. Step 4: Simplify right side
    12,860.31x = 78,948,639.91
  5. Step 5: Solve for x
    x = 78,948,639.91/12,860.31
  6. Step 6: Final answer
    x = 6,138.94

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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.