Home / 13,913.12-20,745.58-12,367.64

Finding the Fourth Proportional to 13,913.12, 20,745.58 and 12,367.64

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Solution

The fourth proportional to 13,913.12, 20,745.58 and 12,367.64 is: 18,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.12 : 20,745.58 = 12,367.64 : x
  2. Step 2: Convert to fraction form
    13,913.12/20,745.58 = 12,367.64/x
  3. Step 3: Cross multiply
    13,913.12x = 20,745.58 × 12,367.64
  4. Step 4: Simplify right side
    13,913.12x = 256,573,730.38
  5. Step 5: Solve for x
    x = 256,573,730.38/13,913.12
  6. Step 6: Final answer
    x = 18,441.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.