Home / 19,556.96-27,010.88-13,258.40

Finding the Fourth Proportional to 19,556.96, 27,010.88 and 13,258.40

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Solution

The fourth proportional to 19,556.96, 27,010.88 and 13,258.40 is: 18,311.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.96 : 27,010.88 = 13,258.40 : x
  2. Step 2: Convert to fraction form
    19,556.96/27,010.88 = 13,258.40/x
  3. Step 3: Cross multiply
    19,556.96x = 27,010.88 × 13,258.40
  4. Step 4: Simplify right side
    19,556.96x = 358,120,850.05
  5. Step 5: Solve for x
    x = 358,120,850.05/19,556.96
  6. Step 6: Final answer
    x = 18,311.69

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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.