Home / 13,206.08-18,185.98-12,361.86

Finding the Fourth Proportional to 13,206.08, 18,185.98 and 12,361.86

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Solution

The fourth proportional to 13,206.08, 18,185.98 and 12,361.86 is: 17,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.08 : 18,185.98 = 12,361.86 : x
  2. Step 2: Convert to fraction form
    13,206.08/18,185.98 = 12,361.86/x
  3. Step 3: Cross multiply
    13,206.08x = 18,185.98 × 12,361.86
  4. Step 4: Simplify right side
    13,206.08x = 224,812,538.72
  5. Step 5: Solve for x
    x = 224,812,538.72/13,206.08
  6. Step 6: Final answer
    x = 17,023.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.