Home / 8,909.56-13,355.53-4,221.34

Finding the Fourth Proportional to 8,909.56, 13,355.53 and 4,221.34

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Solution

The fourth proportional to 8,909.56, 13,355.53 and 4,221.34 is: 6,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.56 : 13,355.53 = 4,221.34 : x
  2. Step 2: Convert to fraction form
    8,909.56/13,355.53 = 4,221.34/x
  3. Step 3: Cross multiply
    8,909.56x = 13,355.53 × 4,221.34
  4. Step 4: Simplify right side
    8,909.56x = 56,378,233.01
  5. Step 5: Solve for x
    x = 56,378,233.01/8,909.56
  6. Step 6: Final answer
    x = 6,327.84

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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.