Home / 12,942.22-17,855.19-7,275.67

Finding the Fourth Proportional to 12,942.22, 17,855.19 and 7,275.67

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Solution

The fourth proportional to 12,942.22, 17,855.19 and 7,275.67 is: 10,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.22 : 17,855.19 = 7,275.67 : x
  2. Step 2: Convert to fraction form
    12,942.22/17,855.19 = 7,275.67/x
  3. Step 3: Cross multiply
    12,942.22x = 17,855.19 × 7,275.67
  4. Step 4: Simplify right side
    12,942.22x = 129,908,470.23
  5. Step 5: Solve for x
    x = 129,908,470.23/12,942.22
  6. Step 6: Final answer
    x = 10,037.57

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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.