Home / 10,905.84-16,351.20-5,977.80

Finding the Fourth Proportional to 10,905.84, 16,351.20 and 5,977.80

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Solution

The fourth proportional to 10,905.84, 16,351.20 and 5,977.80 is: 8,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.84 : 16,351.20 = 5,977.80 : x
  2. Step 2: Convert to fraction form
    10,905.84/16,351.20 = 5,977.80/x
  3. Step 3: Cross multiply
    10,905.84x = 16,351.20 × 5,977.80
  4. Step 4: Simplify right side
    10,905.84x = 97,744,203.36
  5. Step 5: Solve for x
    x = 97,744,203.36/10,905.84
  6. Step 6: Final answer
    x = 8,962.56

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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.