Home / 13,669.69-20,509.08-4,905.29

Finding the Fourth Proportional to 13,669.69, 20,509.08 and 4,905.29

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Solution

The fourth proportional to 13,669.69, 20,509.08 and 4,905.29 is: 7,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.69 : 20,509.08 = 4,905.29 : x
  2. Step 2: Convert to fraction form
    13,669.69/20,509.08 = 4,905.29/x
  3. Step 3: Cross multiply
    13,669.69x = 20,509.08 × 4,905.29
  4. Step 4: Simplify right side
    13,669.69x = 100,602,882.49
  5. Step 5: Solve for x
    x = 100,602,882.49/13,669.69
  6. Step 6: Final answer
    x = 7,359.56

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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.