Home / 13,909.74-20,867.88-4,549.72

Finding the Fourth Proportional to 13,909.74, 20,867.88 and 4,549.72

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Solution

The fourth proportional to 13,909.74, 20,867.88 and 4,549.72 is: 6,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.74 : 20,867.88 = 4,549.72 : x
  2. Step 2: Convert to fraction form
    13,909.74/20,867.88 = 4,549.72/x
  3. Step 3: Cross multiply
    13,909.74x = 20,867.88 × 4,549.72
  4. Step 4: Simplify right side
    13,909.74x = 94,942,956.32
  5. Step 5: Solve for x
    x = 94,942,956.32/13,909.74
  6. Step 6: Final answer
    x = 6,825.65

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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.