Home / 8,419.25-12,628.88-3,225.26

Finding the Fourth Proportional to 8,419.25, 12,628.88 and 3,225.26

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Solution

The fourth proportional to 8,419.25, 12,628.88 and 3,225.26 is: 4,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.25 : 12,628.88 = 3,225.26 : x
  2. Step 2: Convert to fraction form
    8,419.25/12,628.88 = 3,225.26/x
  3. Step 3: Cross multiply
    8,419.25x = 12,628.88 × 3,225.26
  4. Step 4: Simplify right side
    8,419.25x = 40,731,421.51
  5. Step 5: Solve for x
    x = 40,731,421.51/8,419.25
  6. Step 6: Final answer
    x = 4,837.89

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Double scale
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Similar ratio
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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.