Home / 13,246.61-18,272.72-8,269.97

Finding the Fourth Proportional to 13,246.61, 18,272.72 and 8,269.97

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Solution

The fourth proportional to 13,246.61, 18,272.72 and 8,269.97 is: 11,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.61 : 18,272.72 = 8,269.97 : x
  2. Step 2: Convert to fraction form
    13,246.61/18,272.72 = 8,269.97/x
  3. Step 3: Cross multiply
    13,246.61x = 18,272.72 × 8,269.97
  4. Step 4: Simplify right side
    13,246.61x = 151,114,782.03
  5. Step 5: Solve for x
    x = 151,114,782.03/13,246.61
  6. Step 6: Final answer
    x = 11,407.81

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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.