Home / 11,519.30-15,896.81-6,803.57

Finding the Fourth Proportional to 11,519.30, 15,896.81 and 6,803.57

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Solution

The fourth proportional to 11,519.30, 15,896.81 and 6,803.57 is: 9,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.30 : 15,896.81 = 6,803.57 : x
  2. Step 2: Convert to fraction form
    11,519.30/15,896.81 = 6,803.57/x
  3. Step 3: Cross multiply
    11,519.30x = 15,896.81 × 6,803.57
  4. Step 4: Simplify right side
    11,519.30x = 108,155,059.61
  5. Step 5: Solve for x
    x = 108,155,059.61/11,519.30
  6. Step 6: Final answer
    x = 9,389.03

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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.