Home / 12,942.35-17,860.37-7,277.10

Finding the Fourth Proportional to 12,942.35, 17,860.37 and 7,277.10

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Solution

The fourth proportional to 12,942.35, 17,860.37 and 7,277.10 is: 10,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.35 : 17,860.37 = 7,277.10 : x
  2. Step 2: Convert to fraction form
    12,942.35/17,860.37 = 7,277.10/x
  3. Step 3: Cross multiply
    12,942.35x = 17,860.37 × 7,277.10
  4. Step 4: Simplify right side
    12,942.35x = 129,971,662.14
  5. Step 5: Solve for x
    x = 129,971,662.14/12,942.35
  6. Step 6: Final answer
    x = 10,042.36

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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.