Home / 13,721.52-20,584.04-4,358.20

Finding the Fourth Proportional to 13,721.52, 20,584.04 and 4,358.20

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Solution

The fourth proportional to 13,721.52, 20,584.04 and 4,358.20 is: 6,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.52 : 20,584.04 = 4,358.20 : x
  2. Step 2: Convert to fraction form
    13,721.52/20,584.04 = 4,358.20/x
  3. Step 3: Cross multiply
    13,721.52x = 20,584.04 × 4,358.20
  4. Step 4: Simplify right side
    13,721.52x = 89,709,363.13
  5. Step 5: Solve for x
    x = 89,709,363.13/13,721.52
  6. Step 6: Final answer
    x = 6,537.86

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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.