Home / 14,936.31-20,612.16-8,222.40

Finding the Fourth Proportional to 14,936.31, 20,612.16 and 8,222.40

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Solution

The fourth proportional to 14,936.31, 20,612.16 and 8,222.40 is: 11,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,936.31 : 20,612.16 = 8,222.40 : x
  2. Step 2: Convert to fraction form
    14,936.31/20,612.16 = 8,222.40/x
  3. Step 3: Cross multiply
    14,936.31x = 20,612.16 × 8,222.40
  4. Step 4: Simplify right side
    14,936.31x = 169,481,424.38
  5. Step 5: Solve for x
    x = 169,481,424.38/14,936.31
  6. Step 6: Final answer
    x = 11,346.94

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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.