Home / 10,999.21-15,179.71-6,283.39

Finding the Fourth Proportional to 10,999.21, 15,179.71 and 6,283.39

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Solution

The fourth proportional to 10,999.21, 15,179.71 and 6,283.39 is: 8,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.21 : 15,179.71 = 6,283.39 : x
  2. Step 2: Convert to fraction form
    10,999.21/15,179.71 = 6,283.39/x
  3. Step 3: Cross multiply
    10,999.21x = 15,179.71 × 6,283.39
  4. Step 4: Simplify right side
    10,999.21x = 95,379,946.41
  5. Step 5: Solve for x
    x = 95,379,946.41/10,999.21
  6. Step 6: Final answer
    x = 8,671.53

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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.