Home / 13,626.25-20,428.33-4,261.45

Finding the Fourth Proportional to 13,626.25, 20,428.33 and 4,261.45

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Solution

The fourth proportional to 13,626.25, 20,428.33 and 4,261.45 is: 6,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.25 : 20,428.33 = 4,261.45 : x
  2. Step 2: Convert to fraction form
    13,626.25/20,428.33 = 4,261.45/x
  3. Step 3: Cross multiply
    13,626.25x = 20,428.33 × 4,261.45
  4. Step 4: Simplify right side
    13,626.25x = 87,054,306.88
  5. Step 5: Solve for x
    x = 87,054,306.88/13,626.25
  6. Step 6: Final answer
    x = 6,388.72

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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.