Home / 13,231.30-18,258.62-7,263.07

Finding the Fourth Proportional to 13,231.30, 18,258.62 and 7,263.07

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Solution

The fourth proportional to 13,231.30, 18,258.62 and 7,263.07 is: 10,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.30 : 18,258.62 = 7,263.07 : x
  2. Step 2: Convert to fraction form
    13,231.30/18,258.62 = 7,263.07/x
  3. Step 3: Cross multiply
    13,231.30x = 18,258.62 × 7,263.07
  4. Step 4: Simplify right side
    13,231.30x = 132,613,635.16
  5. Step 5: Solve for x
    x = 132,613,635.16/13,231.30
  6. Step 6: Final answer
    x = 10,022.72

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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.