Home / 13,678.42-20,517.62-4,325.00

Finding the Fourth Proportional to 13,678.42, 20,517.62 and 4,325.00

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Solution

The fourth proportional to 13,678.42, 20,517.62 and 4,325.00 is: 6,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.42 : 20,517.62 = 4,325.00 : x
  2. Step 2: Convert to fraction form
    13,678.42/20,517.62 = 4,325.00/x
  3. Step 3: Cross multiply
    13,678.42x = 20,517.62 × 4,325.00
  4. Step 4: Simplify right side
    13,678.42x = 88,738,779.73
  5. Step 5: Solve for x
    x = 88,738,779.73/13,678.42
  6. Step 6: Final answer
    x = 6,487.50

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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.