Home / 14,932.62-20,607.21-8,643.78

Finding the Fourth Proportional to 14,932.62, 20,607.21 and 8,643.78

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Solution

The fourth proportional to 14,932.62, 20,607.21 and 8,643.78 is: 11,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,932.62 : 20,607.21 = 8,643.78 : x
  2. Step 2: Convert to fraction form
    14,932.62/20,607.21 = 8,643.78/x
  3. Step 3: Cross multiply
    14,932.62x = 20,607.21 × 8,643.78
  4. Step 4: Simplify right side
    14,932.62x = 178,124,189.65
  5. Step 5: Solve for x
    x = 178,124,189.65/14,932.62
  6. Step 6: Final answer
    x = 11,928.53

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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.