Home / 12,215.98-18,322.68-8,292.46

Finding the Fourth Proportional to 12,215.98, 18,322.68 and 8,292.46

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Solution

The fourth proportional to 12,215.98, 18,322.68 and 8,292.46 is: 12,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.98 : 18,322.68 = 8,292.46 : x
  2. Step 2: Convert to fraction form
    12,215.98/18,322.68 = 8,292.46/x
  3. Step 3: Cross multiply
    12,215.98x = 18,322.68 × 8,292.46
  4. Step 4: Simplify right side
    12,215.98x = 151,940,090.99
  5. Step 5: Solve for x
    x = 151,940,090.99/12,215.98
  6. Step 6: Final answer
    x = 12,437.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.