Home / 15,043.45-20,760.73-8,329.82

Finding the Fourth Proportional to 15,043.45, 20,760.73 and 8,329.82

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Solution

The fourth proportional to 15,043.45, 20,760.73 and 8,329.82 is: 11,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.45 : 20,760.73 = 8,329.82 : x
  2. Step 2: Convert to fraction form
    15,043.45/20,760.73 = 8,329.82/x
  3. Step 3: Cross multiply
    15,043.45x = 20,760.73 × 8,329.82
  4. Step 4: Simplify right side
    15,043.45x = 172,933,071.24
  5. Step 5: Solve for x
    x = 172,933,071.24/15,043.45
  6. Step 6: Final answer
    x = 11,495.57

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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.