Home / 13,370.80-20,056.56-4,486

Finding the Fourth Proportional to 13,370.80, 20,056.56 and 4,486

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Solution

The fourth proportional to 13,370.80, 20,056.56 and 4,486 is: 6,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.80 : 20,056.56 = 4,486 : x
  2. Step 2: Convert to fraction form
    13,370.80/20,056.56 = 4,486/x
  3. Step 3: Cross multiply
    13,370.80x = 20,056.56 × 4,486
  4. Step 4: Simplify right side
    13,370.80x = 89,973,728.16
  5. Step 5: Solve for x
    x = 89,973,728.16/13,370.80
  6. Step 6: Final answer
    x = 6,729.12

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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.