Home / 12,929.26-19,381.52-4,158

Finding the Fourth Proportional to 12,929.26, 19,381.52 and 4,158

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Solution

The fourth proportional to 12,929.26, 19,381.52 and 4,158 is: 6,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.26 : 19,381.52 = 4,158 : x
  2. Step 2: Convert to fraction form
    12,929.26/19,381.52 = 4,158/x
  3. Step 3: Cross multiply
    12,929.26x = 19,381.52 × 4,158
  4. Step 4: Simplify right side
    12,929.26x = 80,588,360.16
  5. Step 5: Solve for x
    x = 80,588,360.16/12,929.26
  6. Step 6: Final answer
    x = 6,233.02

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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.