Home / 14,190.96-21,286.56-6,397.68

Finding the Fourth Proportional to 14,190.96, 21,286.56 and 6,397.68

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Solution

The fourth proportional to 14,190.96, 21,286.56 and 6,397.68 is: 9,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.96 : 21,286.56 = 6,397.68 : x
  2. Step 2: Convert to fraction form
    14,190.96/21,286.56 = 6,397.68/x
  3. Step 3: Cross multiply
    14,190.96x = 21,286.56 × 6,397.68
  4. Step 4: Simplify right side
    14,190.96x = 136,184,599.18
  5. Step 5: Solve for x
    x = 136,184,599.18/14,190.96
  6. Step 6: Final answer
    x = 9,596.57

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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.