Home / 12,929.32-19,394.38-3,569.50

Finding the Fourth Proportional to 12,929.32, 19,394.38 and 3,569.50

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Solution

The fourth proportional to 12,929.32, 19,394.38 and 3,569.50 is: 5,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.32 : 19,394.38 = 3,569.50 : x
  2. Step 2: Convert to fraction form
    12,929.32/19,394.38 = 3,569.50/x
  3. Step 3: Cross multiply
    12,929.32x = 19,394.38 × 3,569.50
  4. Step 4: Simplify right side
    12,929.32x = 69,228,239.41
  5. Step 5: Solve for x
    x = 69,228,239.41/12,929.32
  6. Step 6: Final answer
    x = 5,354.36

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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.