Home / 18,258.48-27,388.08-7,729.92

Finding the Fourth Proportional to 18,258.48, 27,388.08 and 7,729.92

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Solution

The fourth proportional to 18,258.48, 27,388.08 and 7,729.92 is: 11,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.48 : 27,388.08 = 7,729.92 : x
  2. Step 2: Convert to fraction form
    18,258.48/27,388.08 = 7,729.92/x
  3. Step 3: Cross multiply
    18,258.48x = 27,388.08 × 7,729.92
  4. Step 4: Simplify right side
    18,258.48x = 211,707,667.35
  5. Step 5: Solve for x
    x = 211,707,667.35/18,258.48
  6. Step 6: Final answer
    x = 11,595.03

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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.