Home / 13,739.49-20,615.04-6,725.70

Finding the Fourth Proportional to 13,739.49, 20,615.04 and 6,725.70

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Solution

The fourth proportional to 13,739.49, 20,615.04 and 6,725.70 is: 10,091.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.49 : 20,615.04 = 6,725.70 : x
  2. Step 2: Convert to fraction form
    13,739.49/20,615.04 = 6,725.70/x
  3. Step 3: Cross multiply
    13,739.49x = 20,615.04 × 6,725.70
  4. Step 4: Simplify right side
    13,739.49x = 138,650,574.53
  5. Step 5: Solve for x
    x = 138,650,574.53/13,739.49
  6. Step 6: Final answer
    x = 10,091.39

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1.5x scale

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.