Home / 13,644.41-18,827.60-8,606.72

Finding the Fourth Proportional to 13,644.41, 18,827.60 and 8,606.72

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Solution

The fourth proportional to 13,644.41, 18,827.60 and 8,606.72 is: 11,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.41 : 18,827.60 = 8,606.72 : x
  2. Step 2: Convert to fraction form
    13,644.41/18,827.60 = 8,606.72/x
  3. Step 3: Cross multiply
    13,644.41x = 18,827.60 × 8,606.72
  4. Step 4: Simplify right side
    13,644.41x = 162,043,885.51
  5. Step 5: Solve for x
    x = 162,043,885.51/13,644.41
  6. Step 6: Final answer
    x = 11,876.21

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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.