Home / 14,721.20-20,314.82-8,348.37

Finding the Fourth Proportional to 14,721.20, 20,314.82 and 8,348.37

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Solution

The fourth proportional to 14,721.20, 20,314.82 and 8,348.37 is: 11,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.20 : 20,314.82 = 8,348.37 : x
  2. Step 2: Convert to fraction form
    14,721.20/20,314.82 = 8,348.37/x
  3. Step 3: Cross multiply
    14,721.20x = 20,314.82 × 8,348.37
  4. Step 4: Simplify right side
    14,721.20x = 169,595,730.89
  5. Step 5: Solve for x
    x = 169,595,730.89/14,721.20
  6. Step 6: Final answer
    x = 11,520.51

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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.