Home / 13,580.30-20,369.57-4,695.38

Finding the Fourth Proportional to 13,580.30, 20,369.57 and 4,695.38

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Solution

The fourth proportional to 13,580.30, 20,369.57 and 4,695.38 is: 7,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.30 : 20,369.57 = 4,695.38 : x
  2. Step 2: Convert to fraction form
    13,580.30/20,369.57 = 4,695.38/x
  3. Step 3: Cross multiply
    13,580.30x = 20,369.57 × 4,695.38
  4. Step 4: Simplify right side
    13,580.30x = 95,642,871.59
  5. Step 5: Solve for x
    x = 95,642,871.59/13,580.30
  6. Step 6: Final answer
    x = 7,042.77

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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.