Home / 14,425.56-19,905.66-8,136.72

Finding the Fourth Proportional to 14,425.56, 19,905.66 and 8,136.72

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Solution

The fourth proportional to 14,425.56, 19,905.66 and 8,136.72 is: 11,227.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.56 : 19,905.66 = 8,136.72 : x
  2. Step 2: Convert to fraction form
    14,425.56/19,905.66 = 8,136.72/x
  3. Step 3: Cross multiply
    14,425.56x = 19,905.66 × 8,136.72
  4. Step 4: Simplify right side
    14,425.56x = 161,966,781.84
  5. Step 5: Solve for x
    x = 161,966,781.84/14,425.56
  6. Step 6: Final answer
    x = 11,227.76

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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.