Home / 13,717.32-20,575.80-3,856.08

Finding the Fourth Proportional to 13,717.32, 20,575.80 and 3,856.08

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Solution

The fourth proportional to 13,717.32, 20,575.80 and 3,856.08 is: 5,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.32 : 20,575.80 = 3,856.08 : x
  2. Step 2: Convert to fraction form
    13,717.32/20,575.80 = 3,856.08/x
  3. Step 3: Cross multiply
    13,717.32x = 20,575.80 × 3,856.08
  4. Step 4: Simplify right side
    13,717.32x = 79,341,930.86
  5. Step 5: Solve for x
    x = 79,341,930.86/13,717.32
  6. Step 6: Final answer
    x = 5,784.07

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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.