Home / 11,539.67-15,915.66-8,353.43

Finding the Fourth Proportional to 11,539.67, 15,915.66 and 8,353.43

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Solution

The fourth proportional to 11,539.67, 15,915.66 and 8,353.43 is: 11,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.67 : 15,915.66 = 8,353.43 : x
  2. Step 2: Convert to fraction form
    11,539.67/15,915.66 = 8,353.43/x
  3. Step 3: Cross multiply
    11,539.67x = 15,915.66 × 8,353.43
  4. Step 4: Simplify right side
    11,539.67x = 132,950,272.14
  5. Step 5: Solve for x
    x = 132,950,272.14/11,539.67
  6. Step 6: Final answer
    x = 11,521.16

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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.