Home / 14,704.32-20,291.64-7,989.88

Finding the Fourth Proportional to 14,704.32, 20,291.64 and 7,989.88

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Solution

The fourth proportional to 14,704.32, 20,291.64 and 7,989.88 is: 11,025.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.32 : 20,291.64 = 7,989.88 : x
  2. Step 2: Convert to fraction form
    14,704.32/20,291.64 = 7,989.88/x
  3. Step 3: Cross multiply
    14,704.32x = 20,291.64 × 7,989.88
  4. Step 4: Simplify right side
    14,704.32x = 162,127,768.60
  5. Step 5: Solve for x
    x = 162,127,768.60/14,704.32
  6. Step 6: Final answer
    x = 11,025.86

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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.