Home / 14,536.40-20,043.72-9,231.44

Finding the Fourth Proportional to 14,536.40, 20,043.72 and 9,231.44

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Solution

The fourth proportional to 14,536.40, 20,043.72 and 9,231.44 is: 12,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,536.40 : 20,043.72 = 9,231.44 : x
  2. Step 2: Convert to fraction form
    14,536.40/20,043.72 = 9,231.44/x
  3. Step 3: Cross multiply
    14,536.40x = 20,043.72 × 9,231.44
  4. Step 4: Simplify right side
    14,536.40x = 185,032,398.56
  5. Step 5: Solve for x
    x = 185,032,398.56/14,536.40
  6. Step 6: Final answer
    x = 12,728.90

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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.