Home / 12,696.29-19,038.90-3,929.16

Finding the Fourth Proportional to 12,696.29, 19,038.90 and 3,929.16

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Solution

The fourth proportional to 12,696.29, 19,038.90 and 3,929.16 is: 5,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.29 : 19,038.90 = 3,929.16 : x
  2. Step 2: Convert to fraction form
    12,696.29/19,038.90 = 3,929.16/x
  3. Step 3: Cross multiply
    12,696.29x = 19,038.90 × 3,929.16
  4. Step 4: Simplify right side
    12,696.29x = 74,806,841.26
  5. Step 5: Solve for x
    x = 74,806,841.26/12,696.29
  6. Step 6: Final answer
    x = 5,892.02

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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.