Home / 13,270.65-19,904.64-4,505.43

Finding the Fourth Proportional to 13,270.65, 19,904.64 and 4,505.43

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Solution

The fourth proportional to 13,270.65, 19,904.64 and 4,505.43 is: 6,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.65 : 19,904.64 = 4,505.43 : x
  2. Step 2: Convert to fraction form
    13,270.65/19,904.64 = 4,505.43/x
  3. Step 3: Cross multiply
    13,270.65x = 19,904.64 × 4,505.43
  4. Step 4: Simplify right side
    13,270.65x = 89,678,962.20
  5. Step 5: Solve for x
    x = 89,678,962.20/13,270.65
  6. Step 6: Final answer
    x = 6,757.69

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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.