Home / 11,351.40-15,670.44-7,576.80

Finding the Fourth Proportional to 11,351.40, 15,670.44 and 7,576.80

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Solution

The fourth proportional to 11,351.40, 15,670.44 and 7,576.80 is: 10,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.40 : 15,670.44 = 7,576.80 : x
  2. Step 2: Convert to fraction form
    11,351.40/15,670.44 = 7,576.80/x
  3. Step 3: Cross multiply
    11,351.40x = 15,670.44 × 7,576.80
  4. Step 4: Simplify right side
    11,351.40x = 118,731,789.79
  5. Step 5: Solve for x
    x = 118,731,789.79/11,351.40
  6. Step 6: Final answer
    x = 10,459.66

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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.