Home / 10,961.61-15,128.01-6,247.41

Finding the Fourth Proportional to 10,961.61, 15,128.01 and 6,247.41

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Solution

The fourth proportional to 10,961.61, 15,128.01 and 6,247.41 is: 8,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.61 : 15,128.01 = 6,247.41 : x
  2. Step 2: Convert to fraction form
    10,961.61/15,128.01 = 6,247.41/x
  3. Step 3: Cross multiply
    10,961.61x = 15,128.01 × 6,247.41
  4. Step 4: Simplify right side
    10,961.61x = 94,510,880.95
  5. Step 5: Solve for x
    x = 94,510,880.95/10,961.61
  6. Step 6: Final answer
    x = 8,621.99

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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.