Home / 13,962.35-20,947.43-5,648.21

Finding the Fourth Proportional to 13,962.35, 20,947.43 and 5,648.21

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Solution

The fourth proportional to 13,962.35, 20,947.43 and 5,648.21 is: 8,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.35 : 20,947.43 = 5,648.21 : x
  2. Step 2: Convert to fraction form
    13,962.35/20,947.43 = 5,648.21/x
  3. Step 3: Cross multiply
    13,962.35x = 20,947.43 × 5,648.21
  4. Step 4: Simplify right side
    13,962.35x = 118,315,350.62
  5. Step 5: Solve for x
    x = 118,315,350.62/13,962.35
  6. Step 6: Final answer
    x = 8,473.89

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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.