Home / 15,185.83-20,953.64-8,471.03

Finding the Fourth Proportional to 15,185.83, 20,953.64 and 8,471.03

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Solution

The fourth proportional to 15,185.83, 20,953.64 and 8,471.03 is: 11,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.83 : 20,953.64 = 8,471.03 : x
  2. Step 2: Convert to fraction form
    15,185.83/20,953.64 = 8,471.03/x
  3. Step 3: Cross multiply
    15,185.83x = 20,953.64 × 8,471.03
  4. Step 4: Simplify right side
    15,185.83x = 177,498,899.67
  5. Step 5: Solve for x
    x = 177,498,899.67/15,185.83
  6. Step 6: Final answer
    x = 11,688.46

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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.