Home / 18,764.48-28,156.44-13,612.88

Finding the Fourth Proportional to 18,764.48, 28,156.44 and 13,612.88

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Solution

The fourth proportional to 18,764.48, 28,156.44 and 13,612.88 is: 20,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.48 : 28,156.44 = 13,612.88 : x
  2. Step 2: Convert to fraction form
    18,764.48/28,156.44 = 13,612.88/x
  3. Step 3: Cross multiply
    18,764.48x = 28,156.44 × 13,612.88
  4. Step 4: Simplify right side
    18,764.48x = 383,290,238.95
  5. Step 5: Solve for x
    x = 383,290,238.95/18,764.48
  6. Step 6: Final answer
    x = 20,426.37

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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.