Home / 13,671.23-18,857.54-8,626.55

Finding the Fourth Proportional to 13,671.23, 18,857.54 and 8,626.55

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Solution

The fourth proportional to 13,671.23, 18,857.54 and 8,626.55 is: 11,899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.23 : 18,857.54 = 8,626.55 : x
  2. Step 2: Convert to fraction form
    13,671.23/18,857.54 = 8,626.55/x
  3. Step 3: Cross multiply
    13,671.23x = 18,857.54 × 8,626.55
  4. Step 4: Simplify right side
    13,671.23x = 162,675,438.97
  5. Step 5: Solve for x
    x = 162,675,438.97/13,671.23
  6. Step 6: Final answer
    x = 11,899.11

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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.