Home / 14,704.32-20,291.35-7,989.72

Finding the Fourth Proportional to 14,704.32, 20,291.35 and 7,989.72

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Solution

The fourth proportional to 14,704.32, 20,291.35 and 7,989.72 is: 11,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.32 : 20,291.35 = 7,989.72 : x
  2. Step 2: Convert to fraction form
    14,704.32/20,291.35 = 7,989.72/x
  3. Step 3: Cross multiply
    14,704.32x = 20,291.35 × 7,989.72
  4. Step 4: Simplify right side
    14,704.32x = 162,122,204.92
  5. Step 5: Solve for x
    x = 162,122,204.92/14,704.32
  6. Step 6: Final answer
    x = 11,025.48

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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.