Home / 10,680.06-16,020.09-7,776.84

Finding the Fourth Proportional to 10,680.06, 16,020.09 and 7,776.84

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Solution

The fourth proportional to 10,680.06, 16,020.09 and 7,776.84 is: 11,665.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,680.06 : 16,020.09 = 7,776.84 : x
  2. Step 2: Convert to fraction form
    10,680.06/16,020.09 = 7,776.84/x
  3. Step 3: Cross multiply
    10,680.06x = 16,020.09 × 7,776.84
  4. Step 4: Simplify right side
    10,680.06x = 124,585,676.72
  5. Step 5: Solve for x
    x = 124,585,676.72/10,680.06
  6. Step 6: Final answer
    x = 11,665.26

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1.5x scale

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.