Home / 8,909.06-13,354.78-4,220.84

Finding the Fourth Proportional to 8,909.06, 13,354.78 and 4,220.84

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Solution

The fourth proportional to 8,909.06, 13,354.78 and 4,220.84 is: 6,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.06 : 13,354.78 = 4,220.84 : x
  2. Step 2: Convert to fraction form
    8,909.06/13,354.78 = 4,220.84/x
  3. Step 3: Cross multiply
    8,909.06x = 13,354.78 × 4,220.84
  4. Step 4: Simplify right side
    8,909.06x = 56,368,389.62
  5. Step 5: Solve for x
    x = 56,368,389.62/8,909.06
  6. Step 6: Final answer
    x = 6,327.09

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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.