Home / 13,453.74-18,553.14-8,977.68

Finding the Fourth Proportional to 13,453.74, 18,553.14 and 8,977.68

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Solution

The fourth proportional to 13,453.74, 18,553.14 and 8,977.68 is: 12,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.74 : 18,553.14 = 8,977.68 : x
  2. Step 2: Convert to fraction form
    13,453.74/18,553.14 = 8,977.68/x
  3. Step 3: Cross multiply
    13,453.74x = 18,553.14 × 8,977.68
  4. Step 4: Simplify right side
    13,453.74x = 166,564,153.92
  5. Step 5: Solve for x
    x = 166,564,153.92/13,453.74
  6. Step 6: Final answer
    x = 12,380.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.