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Finding the Fourth Proportional to 13,064.41, 18,035.51 and 8,289.22

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Solution

The fourth proportional to 13,064.41, 18,035.51 and 8,289.22 is: 11,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.41 : 18,035.51 = 8,289.22 : x
  2. Step 2: Convert to fraction form
    13,064.41/18,035.51 = 8,289.22/x
  3. Step 3: Cross multiply
    13,064.41x = 18,035.51 × 8,289.22
  4. Step 4: Simplify right side
    13,064.41x = 149,500,304.11
  5. Step 5: Solve for x
    x = 149,500,304.11/13,064.41
  6. Step 6: Final answer
    x = 11,443.33

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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.