Home / 13,231.35-18,258.87-7,262.81

Finding the Fourth Proportional to 13,231.35, 18,258.87 and 7,262.81

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Solution

The fourth proportional to 13,231.35, 18,258.87 and 7,262.81 is: 10,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.35 : 18,258.87 = 7,262.81 : x
  2. Step 2: Convert to fraction form
    13,231.35/18,258.87 = 7,262.81/x
  3. Step 3: Cross multiply
    13,231.35x = 18,258.87 × 7,262.81
  4. Step 4: Simplify right side
    13,231.35x = 132,610,769.89
  5. Step 5: Solve for x
    x = 132,610,769.89/13,231.35
  6. Step 6: Final answer
    x = 10,022.47

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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.