Home / 14,212.20-21,319.90-4,351.40

Finding the Fourth Proportional to 14,212.20, 21,319.90 and 4,351.40

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Solution

The fourth proportional to 14,212.20, 21,319.90 and 4,351.40 is: 6,527.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.20 : 21,319.90 = 4,351.40 : x
  2. Step 2: Convert to fraction form
    14,212.20/21,319.90 = 4,351.40/x
  3. Step 3: Cross multiply
    14,212.20x = 21,319.90 × 4,351.40
  4. Step 4: Simplify right side
    14,212.20x = 92,771,412.86
  5. Step 5: Solve for x
    x = 92,771,412.86/14,212.20
  6. Step 6: Final answer
    x = 6,527.59

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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.