Home / 12,369.72-18,551.70-5,789.64

Finding the Fourth Proportional to 12,369.72, 18,551.70 and 5,789.64

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Solution

The fourth proportional to 12,369.72, 18,551.70 and 5,789.64 is: 8,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.72 : 18,551.70 = 5,789.64 : x
  2. Step 2: Convert to fraction form
    12,369.72/18,551.70 = 5,789.64/x
  3. Step 3: Cross multiply
    12,369.72x = 18,551.70 × 5,789.64
  4. Step 4: Simplify right side
    12,369.72x = 107,407,664.39
  5. Step 5: Solve for x
    x = 107,407,664.39/12,369.72
  6. Step 6: Final answer
    x = 8,683.11

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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.