Home / 13,270.89-19,905.87-4,505.88

Finding the Fourth Proportional to 13,270.89, 19,905.87 and 4,505.88

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Solution

The fourth proportional to 13,270.89, 19,905.87 and 4,505.88 is: 6,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.89 : 19,905.87 = 4,505.88 : x
  2. Step 2: Convert to fraction form
    13,270.89/19,905.87 = 4,505.88/x
  3. Step 3: Cross multiply
    13,270.89x = 19,905.87 × 4,505.88
  4. Step 4: Simplify right side
    13,270.89x = 89,693,461.52
  5. Step 5: Solve for x
    x = 89,693,461.52/13,270.89
  6. Step 6: Final answer
    x = 6,758.66

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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.