Home / 12,989.39-17,926.27-7,324.65

Finding the Fourth Proportional to 12,989.39, 17,926.27 and 7,324.65

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Solution

The fourth proportional to 12,989.39, 17,926.27 and 7,324.65 is: 10,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989.39 : 17,926.27 = 7,324.65 : x
  2. Step 2: Convert to fraction form
    12,989.39/17,926.27 = 7,324.65/x
  3. Step 3: Cross multiply
    12,989.39x = 17,926.27 × 7,324.65
  4. Step 4: Simplify right side
    12,989.39x = 131,303,635.24
  5. Step 5: Solve for x
    x = 131,303,635.24/12,989.39
  6. Step 6: Final answer
    x = 10,108.53

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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.