Home / 12,942.14-17,860.34-7,276.57

Finding the Fourth Proportional to 12,942.14, 17,860.34 and 7,276.57

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Solution

The fourth proportional to 12,942.14, 17,860.34 and 7,276.57 is: 10,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.14 : 17,860.34 = 7,276.57 : x
  2. Step 2: Convert to fraction form
    12,942.14/17,860.34 = 7,276.57/x
  3. Step 3: Cross multiply
    12,942.14x = 17,860.34 × 7,276.57
  4. Step 4: Simplify right side
    12,942.14x = 129,962,014.23
  5. Step 5: Solve for x
    x = 129,962,014.23/12,942.14
  6. Step 6: Final answer
    x = 10,041.77

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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.