Home / 15,333.66-21,162.32-8,619.56

Finding the Fourth Proportional to 15,333.66, 21,162.32 and 8,619.56

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Solution

The fourth proportional to 15,333.66, 21,162.32 and 8,619.56 is: 11,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.66 : 21,162.32 = 8,619.56 : x
  2. Step 2: Convert to fraction form
    15,333.66/21,162.32 = 8,619.56/x
  3. Step 3: Cross multiply
    15,333.66x = 21,162.32 × 8,619.56
  4. Step 4: Simplify right side
    15,333.66x = 182,409,886.98
  5. Step 5: Solve for x
    x = 182,409,886.98/15,333.66
  6. Step 6: Final answer
    x = 11,896.04

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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.