Home / 13,909.25-20,865.16-4,549.32

Finding the Fourth Proportional to 13,909.25, 20,865.16 and 4,549.32

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Solution

The fourth proportional to 13,909.25, 20,865.16 and 4,549.32 is: 6,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.25 : 20,865.16 = 4,549.32 : x
  2. Step 2: Convert to fraction form
    13,909.25/20,865.16 = 4,549.32/x
  3. Step 3: Cross multiply
    13,909.25x = 20,865.16 × 4,549.32
  4. Step 4: Simplify right side
    13,909.25x = 94,922,278.32
  5. Step 5: Solve for x
    x = 94,922,278.32/13,909.25
  6. Step 6: Final answer
    x = 6,824.40

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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.