Home / 12,507.76-18,736.88-10,170.36

Finding the Fourth Proportional to 12,507.76, 18,736.88 and 10,170.36

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Solution

The fourth proportional to 12,507.76, 18,736.88 and 10,170.36 is: 15,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.76 : 18,736.88 = 10,170.36 : x
  2. Step 2: Convert to fraction form
    12,507.76/18,736.88 = 10,170.36/x
  3. Step 3: Cross multiply
    12,507.76x = 18,736.88 × 10,170.36
  4. Step 4: Simplify right side
    12,507.76x = 190,560,814.88
  5. Step 5: Solve for x
    x = 190,560,814.88/12,507.76
  6. Step 6: Final answer
    x = 15,235.41

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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.