Home / 13,923.12-20,832.30-8,567.70

Finding the Fourth Proportional to 13,923.12, 20,832.30 and 8,567.70

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Solution

The fourth proportional to 13,923.12, 20,832.30 and 8,567.70 is: 12,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.12 : 20,832.30 = 8,567.70 : x
  2. Step 2: Convert to fraction form
    13,923.12/20,832.30 = 8,567.70/x
  3. Step 3: Cross multiply
    13,923.12x = 20,832.30 × 8,567.70
  4. Step 4: Simplify right side
    13,923.12x = 178,484,896.71
  5. Step 5: Solve for x
    x = 178,484,896.71/13,923.12
  6. Step 6: Final answer
    x = 12,819.32

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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.