Home / 13,794.57-20,690.64-8,530.38

Finding the Fourth Proportional to 13,794.57, 20,690.64 and 8,530.38

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Solution

The fourth proportional to 13,794.57, 20,690.64 and 8,530.38 is: 12,794.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.57 : 20,690.64 = 8,530.38 : x
  2. Step 2: Convert to fraction form
    13,794.57/20,690.64 = 8,530.38/x
  3. Step 3: Cross multiply
    13,794.57x = 20,690.64 × 8,530.38
  4. Step 4: Simplify right side
    13,794.57x = 176,499,021.64
  5. Step 5: Solve for x
    x = 176,499,021.64/13,794.57
  6. Step 6: Final answer
    x = 12,794.82

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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.