Home / 12,374.72-18,565.20-3,610.40

Finding the Fourth Proportional to 12,374.72, 18,565.20 and 3,610.40

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Solution

The fourth proportional to 12,374.72, 18,565.20 and 3,610.40 is: 5,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.72 : 18,565.20 = 3,610.40 : x
  2. Step 2: Convert to fraction form
    12,374.72/18,565.20 = 3,610.40/x
  3. Step 3: Cross multiply
    12,374.72x = 18,565.20 × 3,610.40
  4. Step 4: Simplify right side
    12,374.72x = 67,027,798.08
  5. Step 5: Solve for x
    x = 67,027,798.08/12,374.72
  6. Step 6: Final answer
    x = 5,416.51

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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.