Home / 15,900.11-21,942.24-8,730.33

Finding the Fourth Proportional to 15,900.11, 21,942.24 and 8,730.33

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Solution

The fourth proportional to 15,900.11, 21,942.24 and 8,730.33 is: 12,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.11 : 21,942.24 = 8,730.33 : x
  2. Step 2: Convert to fraction form
    15,900.11/21,942.24 = 8,730.33/x
  3. Step 3: Cross multiply
    15,900.11x = 21,942.24 × 8,730.33
  4. Step 4: Simplify right side
    15,900.11x = 191,562,996.14
  5. Step 5: Solve for x
    x = 191,562,996.14/15,900.11
  6. Step 6: Final answer
    x = 12,047.90

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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.