Home / 13,424.82-20,140.86-9,553.80

Finding the Fourth Proportional to 13,424.82, 20,140.86 and 9,553.80

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Solution

The fourth proportional to 13,424.82, 20,140.86 and 9,553.80 is: 14,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.82 : 20,140.86 = 9,553.80 : x
  2. Step 2: Convert to fraction form
    13,424.82/20,140.86 = 9,553.80/x
  3. Step 3: Cross multiply
    13,424.82x = 20,140.86 × 9,553.80
  4. Step 4: Simplify right side
    13,424.82x = 192,421,748.27
  5. Step 5: Solve for x
    x = 192,421,748.27/13,424.82
  6. Step 6: Final answer
    x = 14,333.28

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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.