Home / 13,675.24-20,513.04-3,814.28

Finding the Fourth Proportional to 13,675.24, 20,513.04 and 3,814.28

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Solution

The fourth proportional to 13,675.24, 20,513.04 and 3,814.28 is: 5,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.24 : 20,513.04 = 3,814.28 : x
  2. Step 2: Convert to fraction form
    13,675.24/20,513.04 = 3,814.28/x
  3. Step 3: Cross multiply
    13,675.24x = 20,513.04 × 3,814.28
  4. Step 4: Simplify right side
    13,675.24x = 78,242,478.21
  5. Step 5: Solve for x
    x = 78,242,478.21/13,675.24
  6. Step 6: Final answer
    x = 5,721.47

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1.5x scale

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.