Home / 10,915.43-15,066.30-6,382.03

Finding the Fourth Proportional to 10,915.43, 15,066.30 and 6,382.03

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Solution

The fourth proportional to 10,915.43, 15,066.30 and 6,382.03 is: 8,808.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.43 : 15,066.30 = 6,382.03 : x
  2. Step 2: Convert to fraction form
    10,915.43/15,066.30 = 6,382.03/x
  3. Step 3: Cross multiply
    10,915.43x = 15,066.30 × 6,382.03
  4. Step 4: Simplify right side
    10,915.43x = 96,153,578.59
  5. Step 5: Solve for x
    x = 96,153,578.59/10,915.43
  6. Step 6: Final answer
    x = 8,808.96

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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.