Home / 13,784.56-20,678.22-4,422.24

Finding the Fourth Proportional to 13,784.56, 20,678.22 and 4,422.24

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Solution

The fourth proportional to 13,784.56, 20,678.22 and 4,422.24 is: 6,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.56 : 20,678.22 = 4,422.24 : x
  2. Step 2: Convert to fraction form
    13,784.56/20,678.22 = 4,422.24/x
  3. Step 3: Cross multiply
    13,784.56x = 20,678.22 × 4,422.24
  4. Step 4: Simplify right side
    13,784.56x = 91,444,051.61
  5. Step 5: Solve for x
    x = 91,444,051.61/13,784.56
  6. Step 6: Final answer
    x = 6,633.80

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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.