Home / 18,314.56-27,449.70-13,109.50

Finding the Fourth Proportional to 18,314.56, 27,449.70 and 13,109.50

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Solution

The fourth proportional to 18,314.56, 27,449.70 and 13,109.50 is: 19,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.56 : 27,449.70 = 13,109.50 : x
  2. Step 2: Convert to fraction form
    18,314.56/27,449.70 = 13,109.50/x
  3. Step 3: Cross multiply
    18,314.56x = 27,449.70 × 13,109.50
  4. Step 4: Simplify right side
    18,314.56x = 359,851,842.15
  5. Step 5: Solve for x
    x = 359,851,842.15/18,314.56
  6. Step 6: Final answer
    x = 19,648.40

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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.