Home / 12,383.48-18,575.40-3,616.40

Finding the Fourth Proportional to 12,383.48, 18,575.40 and 3,616.40

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Solution

The fourth proportional to 12,383.48, 18,575.40 and 3,616.40 is: 5,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.48 : 18,575.40 = 3,616.40 : x
  2. Step 2: Convert to fraction form
    12,383.48/18,575.40 = 3,616.40/x
  3. Step 3: Cross multiply
    12,383.48x = 18,575.40 × 3,616.40
  4. Step 4: Simplify right side
    12,383.48x = 67,176,076.56
  5. Step 5: Solve for x
    x = 67,176,076.56/12,383.48
  6. Step 6: Final answer
    x = 5,424.65

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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.