Home / 15,070.12-20,796.39-8,696.73

Finding the Fourth Proportional to 15,070.12, 20,796.39 and 8,696.73

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Solution

The fourth proportional to 15,070.12, 20,796.39 and 8,696.73 is: 12,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.12 : 20,796.39 = 8,696.73 : x
  2. Step 2: Convert to fraction form
    15,070.12/20,796.39 = 8,696.73/x
  3. Step 3: Cross multiply
    15,070.12x = 20,796.39 × 8,696.73
  4. Step 4: Simplify right side
    15,070.12x = 180,860,588.80
  5. Step 5: Solve for x
    x = 180,860,588.80/15,070.12
  6. Step 6: Final answer
    x = 12,001.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.