Home / 14,147.12-21,191.52-8,285.96

Finding the Fourth Proportional to 14,147.12, 21,191.52 and 8,285.96

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Solution

The fourth proportional to 14,147.12, 21,191.52 and 8,285.96 is: 12,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.12 : 21,191.52 = 8,285.96 : x
  2. Step 2: Convert to fraction form
    14,147.12/21,191.52 = 8,285.96/x
  3. Step 3: Cross multiply
    14,147.12x = 21,191.52 × 8,285.96
  4. Step 4: Simplify right side
    14,147.12x = 175,592,087.06
  5. Step 5: Solve for x
    x = 175,592,087.06/14,147.12
  6. Step 6: Final answer
    x = 12,411.86

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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.