Home / 15,884.70-23,827.05-12,579.90

Finding the Fourth Proportional to 15,884.70, 23,827.05 and 12,579.90

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Solution

The fourth proportional to 15,884.70, 23,827.05 and 12,579.90 is: 18,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,884.70 : 23,827.05 = 12,579.90 : x
  2. Step 2: Convert to fraction form
    15,884.70/23,827.05 = 12,579.90/x
  3. Step 3: Cross multiply
    15,884.70x = 23,827.05 × 12,579.90
  4. Step 4: Simplify right side
    15,884.70x = 299,741,906.30
  5. Step 5: Solve for x
    x = 299,741,906.30/15,884.70
  6. Step 6: Final answer
    x = 18,869.85

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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.