Home / 9,780.48-14,669.28-3,211.92

Finding the Fourth Proportional to 9,780.48, 14,669.28 and 3,211.92

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Solution

The fourth proportional to 9,780.48, 14,669.28 and 3,211.92 is: 4,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.48 : 14,669.28 = 3,211.92 : x
  2. Step 2: Convert to fraction form
    9,780.48/14,669.28 = 3,211.92/x
  3. Step 3: Cross multiply
    9,780.48x = 14,669.28 × 3,211.92
  4. Step 4: Simplify right side
    9,780.48x = 47,116,553.82
  5. Step 5: Solve for x
    x = 47,116,553.82/9,780.48
  6. Step 6: Final answer
    x = 4,817.41

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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.