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Finding the Fourth Proportional to 13,348.20, 20,022.30 and 12,837.90

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Solution

The fourth proportional to 13,348.20, 20,022.30 and 12,837.90 is: 19,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.20 : 20,022.30 = 12,837.90 : x
  2. Step 2: Convert to fraction form
    13,348.20/20,022.30 = 12,837.90/x
  3. Step 3: Cross multiply
    13,348.20x = 20,022.30 × 12,837.90
  4. Step 4: Simplify right side
    13,348.20x = 257,044,285.17
  5. Step 5: Solve for x
    x = 257,044,285.17/13,348.20
  6. Step 6: Final answer
    x = 19,256.85

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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.