Home / 18,957.60-28,432.26-11,043.36

Finding the Fourth Proportional to 18,957.60, 28,432.26 and 11,043.36

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Solution

The fourth proportional to 18,957.60, 28,432.26 and 11,043.36 is: 16,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.60 : 28,432.26 = 11,043.36 : x
  2. Step 2: Convert to fraction form
    18,957.60/28,432.26 = 11,043.36/x
  3. Step 3: Cross multiply
    18,957.60x = 28,432.26 × 11,043.36
  4. Step 4: Simplify right side
    18,957.60x = 313,987,682.79
  5. Step 5: Solve for x
    x = 313,987,682.79/18,957.60
  6. Step 6: Final answer
    x = 16,562.63

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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.