Home / 14,196.81-21,270.24-12,650.58

Finding the Fourth Proportional to 14,196.81, 21,270.24 and 12,650.58

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Solution

The fourth proportional to 14,196.81, 21,270.24 and 12,650.58 is: 18,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,196.81 : 21,270.24 = 12,650.58 : x
  2. Step 2: Convert to fraction form
    14,196.81/21,270.24 = 12,650.58/x
  3. Step 3: Cross multiply
    14,196.81x = 21,270.24 × 12,650.58
  4. Step 4: Simplify right side
    14,196.81x = 269,080,872.74
  5. Step 5: Solve for x
    x = 269,080,872.74/14,196.81
  6. Step 6: Final answer
    x = 18,953.62

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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.