Home / 13,331.39-20,009.39-6,762.18

Finding the Fourth Proportional to 13,331.39, 20,009.39 and 6,762.18

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Solution

The fourth proportional to 13,331.39, 20,009.39 and 6,762.18 is: 10,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.39 : 20,009.39 = 6,762.18 : x
  2. Step 2: Convert to fraction form
    13,331.39/20,009.39 = 6,762.18/x
  3. Step 3: Cross multiply
    13,331.39x = 20,009.39 × 6,762.18
  4. Step 4: Simplify right side
    13,331.39x = 135,307,063.06
  5. Step 5: Solve for x
    x = 135,307,063.06/13,331.39
  6. Step 6: Final answer
    x = 10,149.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.