Home / 11,260.90-15,546.66-7,729.30

Finding the Fourth Proportional to 11,260.90, 15,546.66 and 7,729.30

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Solution

The fourth proportional to 11,260.90, 15,546.66 and 7,729.30 is: 10,670.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260.90 : 15,546.66 = 7,729.30 : x
  2. Step 2: Convert to fraction form
    11,260.90/15,546.66 = 7,729.30/x
  3. Step 3: Cross multiply
    11,260.90x = 15,546.66 × 7,729.30
  4. Step 4: Simplify right side
    11,260.90x = 120,164,799.14
  5. Step 5: Solve for x
    x = 120,164,799.14/11,260.90
  6. Step 6: Final answer
    x = 10,670.98

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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.