Home / 11,750.88-16,210.56-6,780

Finding the Fourth Proportional to 11,750.88, 16,210.56 and 6,780

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Solution

The fourth proportional to 11,750.88, 16,210.56 and 6,780 is: 9,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.88 : 16,210.56 = 6,780 : x
  2. Step 2: Convert to fraction form
    11,750.88/16,210.56 = 6,780/x
  3. Step 3: Cross multiply
    11,750.88x = 16,210.56 × 6,780
  4. Step 4: Simplify right side
    11,750.88x = 109,907,596.80
  5. Step 5: Solve for x
    x = 109,907,596.80/11,750.88
  6. Step 6: Final answer
    x = 9,353.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.