Home / 13,720.56-20,590.92-10,608.24

Finding the Fourth Proportional to 13,720.56, 20,590.92 and 10,608.24

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Solution

The fourth proportional to 13,720.56, 20,590.92 and 10,608.24 is: 15,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.56 : 20,590.92 = 10,608.24 : x
  2. Step 2: Convert to fraction form
    13,720.56/20,590.92 = 10,608.24/x
  3. Step 3: Cross multiply
    13,720.56x = 20,590.92 × 10,608.24
  4. Step 4: Simplify right side
    13,720.56x = 218,433,421.18
  5. Step 5: Solve for x
    x = 218,433,421.18/13,720.56
  6. Step 6: Final answer
    x = 15,920.15

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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.