Home / 9,609.09-13,264.38-6,780.57

Finding the Fourth Proportional to 9,609.09, 13,264.38 and 6,780.57

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Solution

The fourth proportional to 9,609.09, 13,264.38 and 6,780.57 is: 9,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,609.09 : 13,264.38 = 6,780.57 : x
  2. Step 2: Convert to fraction form
    9,609.09/13,264.38 = 6,780.57/x
  3. Step 3: Cross multiply
    9,609.09x = 13,264.38 × 6,780.57
  4. Step 4: Simplify right side
    9,609.09x = 89,940,057.10
  5. Step 5: Solve for x
    x = 89,940,057.10/9,609.09
  6. Step 6: Final answer
    x = 9,359.89

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1.5x scale

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.