Home / 12,421.82-18,626.58-4,522.48

Finding the Fourth Proportional to 12,421.82, 18,626.58 and 4,522.48

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Solution

The fourth proportional to 12,421.82, 18,626.58 and 4,522.48 is: 6,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.82 : 18,626.58 = 4,522.48 : x
  2. Step 2: Convert to fraction form
    12,421.82/18,626.58 = 4,522.48/x
  3. Step 3: Cross multiply
    12,421.82x = 18,626.58 × 4,522.48
  4. Step 4: Simplify right side
    12,421.82x = 84,238,259.96
  5. Step 5: Solve for x
    x = 84,238,259.96/12,421.82
  6. Step 6: Final answer
    x = 6,781.48

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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.