Home / 13,106.60-18,081.72-8,325.27

Finding the Fourth Proportional to 13,106.60, 18,081.72 and 8,325.27

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Solution

The fourth proportional to 13,106.60, 18,081.72 and 8,325.27 is: 11,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.60 : 18,081.72 = 8,325.27 : x
  2. Step 2: Convert to fraction form
    13,106.60/18,081.72 = 8,325.27/x
  3. Step 3: Cross multiply
    13,106.60x = 18,081.72 × 8,325.27
  4. Step 4: Simplify right side
    13,106.60x = 150,535,201.06
  5. Step 5: Solve for x
    x = 150,535,201.06/13,106.60
  6. Step 6: Final answer
    x = 11,485.45

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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.