Home / 13,363.13-18,455.72-8,905.82

Finding the Fourth Proportional to 13,363.13, 18,455.72 and 8,905.82

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Solution

The fourth proportional to 13,363.13, 18,455.72 and 8,905.82 is: 12,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.13 : 18,455.72 = 8,905.82 : x
  2. Step 2: Convert to fraction form
    13,363.13/18,455.72 = 8,905.82/x
  3. Step 3: Cross multiply
    13,363.13x = 18,455.72 × 8,905.82
  4. Step 4: Simplify right side
    13,363.13x = 164,363,183.48
  5. Step 5: Solve for x
    x = 164,363,183.48/13,363.13
  6. Step 6: Final answer
    x = 12,299.75

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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.