Home / 12,929.10-19,394.76-3,569.12

Finding the Fourth Proportional to 12,929.10, 19,394.76 and 3,569.12

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Solution

The fourth proportional to 12,929.10, 19,394.76 and 3,569.12 is: 5,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.10 : 19,394.76 = 3,569.12 : x
  2. Step 2: Convert to fraction form
    12,929.10/19,394.76 = 3,569.12/x
  3. Step 3: Cross multiply
    12,929.10x = 19,394.76 × 3,569.12
  4. Step 4: Simplify right side
    12,929.10x = 69,222,128.84
  5. Step 5: Solve for x
    x = 69,222,128.84/12,929.10
  6. Step 6: Final answer
    x = 5,353.98

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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.