Home / 13,921.42-20,888.82-6,524.68

Finding the Fourth Proportional to 13,921.42, 20,888.82 and 6,524.68

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Solution

The fourth proportional to 13,921.42, 20,888.82 and 6,524.68 is: 9,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.42 : 20,888.82 = 6,524.68 : x
  2. Step 2: Convert to fraction form
    13,921.42/20,888.82 = 6,524.68/x
  3. Step 3: Cross multiply
    13,921.42x = 20,888.82 × 6,524.68
  4. Step 4: Simplify right side
    13,921.42x = 136,292,866.08
  5. Step 5: Solve for x
    x = 136,292,866.08/13,921.42
  6. Step 6: Final answer
    x = 9,790.16

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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.