Home / 12,672.48-19,011.28-3,907.04

Finding the Fourth Proportional to 12,672.48, 19,011.28 and 3,907.04

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Solution

The fourth proportional to 12,672.48, 19,011.28 and 3,907.04 is: 5,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.48 : 19,011.28 = 3,907.04 : x
  2. Step 2: Convert to fraction form
    12,672.48/19,011.28 = 3,907.04/x
  3. Step 3: Cross multiply
    12,672.48x = 19,011.28 × 3,907.04
  4. Step 4: Simplify right side
    12,672.48x = 74,277,831.41
  5. Step 5: Solve for x
    x = 74,277,831.41/12,672.48
  6. Step 6: Final answer
    x = 5,861.35

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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.