Home / 13,170.36-19,729.62-8,725.08

Finding the Fourth Proportional to 13,170.36, 19,729.62 and 8,725.08

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Solution

The fourth proportional to 13,170.36, 19,729.62 and 8,725.08 is: 13,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.36 : 19,729.62 = 8,725.08 : x
  2. Step 2: Convert to fraction form
    13,170.36/19,729.62 = 8,725.08/x
  3. Step 3: Cross multiply
    13,170.36x = 19,729.62 × 8,725.08
  4. Step 4: Simplify right side
    13,170.36x = 172,142,512.87
  5. Step 5: Solve for x
    x = 172,142,512.87/13,170.36
  6. Step 6: Final answer
    x = 13,070.45

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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.